{"id":8217,"date":"2026-03-09T09:59:41","date_gmt":"2026-03-09T09:59:41","guid":{"rendered":"https:\/\/www.airsang.com\/?p=8217"},"modified":"2026-03-09T10:03:22","modified_gmt":"2026-03-09T10:03:22","slug":"fix-critical-error-on-this-website-in-wordpress","status":"publish","type":"post","link":"https:\/\/www.airsang.com\/vi\/fix-critical-error-on-this-website-in-wordpress\/","title":{"rendered":"Fix Critical Error on This Website in WordPress"},"content":{"rendered":"<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"686\" height=\"386\" src=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-53.png\" alt=\"Fix Critical Error on This Website in WordPress\" class=\"wp-image-8218\" srcset=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-53.png 686w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-53-300x169.png 300w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-53-18x10.png 18w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-53-1x1.png 1w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-53-10x6.png 10w\" sizes=\"auto, (max-width: 686px) 100vw, 686px\" \/><\/figure>\n\n\n\n<p><strong><a href=\"https:\/\/www.WordPres.com\" target=\"_blank\" rel=\"noopener\">WordPress<\/a><\/strong> powers millions of websites worldwide, from personal blogs to large e-commerce platforms. While it is one of the most flexible and user-friendly website systems available, users occasionally encounter frustrating technical messages.<\/p>\n\n\n\n<p>One of the most common errors is:<\/p>\n\n\n\n<p>\u201c\u0110\u00e3 x\u1ea3y ra l\u1ed7i nghi\u00eam tr\u1ecdng tr\u00ean trang web n\u00e0y.\u201d<\/p>\n\n\n\n<p>If you have ever opened your WordPress site only to see this message, you may have wondered what went wrong and how to fix it. The good news is that this error is usually fixable, and understanding the causes can help prevent it from happening again.<\/p>\n\n\n\n<p>In this guide, we\u2019ll explain what \u201cthere has been a critical error on this website. wordpress\u201d means, why it occurs, and the most effective ways to resolve it\u2014even if you are not a developer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does \u201cThere Has Been a Critical Error on This Website\u201d Mean?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"600\" src=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-1024x600.png\" alt=\"Fix Critical Error on This Website in WordPress-What Does \u201cThere Has Been a Critical Error on This Website\u201d Mean?\" class=\"wp-image-8219\" srcset=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-1024x600.png 1024w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-300x176.png 300w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-768x450.png 768w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-18x12.png 18w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-1000x586.png 1000w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-1x1.png 1w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54-10x6.png 10w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-54.png 1408w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The message \u201cthere has been a critical error on this website. wordpress\u201d appears when WordPress encounters a fatal PHP error that prevents the site from loading correctly.<\/p>\n\n\n\n<p>Instead of displaying a blank white screen (which used to happen in older WordPress versions), WordPress now shows this message to indicate something has gone wrong in the system.<\/p>\n\n\n\n<p>This error typically occurs when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A plugin causes a conflict<\/li>\n\n\n\n<li>A theme contains broken code<\/li>\n\n\n\n<li>WordPress files become corrupted<\/li>\n\n\n\n<li>PHP memory limits are exceeded<\/li>\n\n\n\n<li>A recent update introduces compatibility issues<\/li>\n<\/ul>\n\n\n\n<p>When WordPress detects a fatal issue, it stops execution to prevent further damage to the website.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Common Causes of WordPress Critical Errors<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-1024x683.png\" alt=\"Fix Critical Error on This Website in WordPress-Common Causes of WordPress Critical Errors\" class=\"wp-image-8220\" srcset=\"https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-1024x683.png 1024w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-300x200.png 300w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-768x512.png 768w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-18x12.png 18w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-1000x667.png 1000w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-1x1.png 1w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55-10x7.png 10w, https:\/\/www.airsang.com\/wp-content\/uploads\/2026\/03\/image-55.png 1536w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Understanding the root cause makes it easier to fix the problem quickly. Below are the most common reasons this error appears.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Xung \u0111\u1ed9t Plugin<\/h3>\n\n\n\n<p>Plugins extend WordPress functionality, but poorly coded or incompatible plugins can cause fatal errors.<\/p>\n\n\n\n<p>This often happens when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A plugin is outdated<\/li>\n\n\n\n<li>A plugin conflicts with another plugin<\/li>\n\n\n\n<li>A plugin is incompatible with your WordPress version<\/li>\n\n\n\n<li>A plugin requires a newer PHP version<\/li>\n<\/ul>\n\n\n\n<p>For example, installing a new plugin or updating one right before the error appears is a strong indication that the plugin might be the problem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 ch\u1ee7 \u0111\u1ec1<\/h3>\n\n\n\n<p>Your WordPress theme controls how your website looks and functions.<\/p>\n\n\n\n<p>If a theme contains broken code or conflicts with WordPress core updates, it may trigger the critical error on this website WordPress message.<\/p>\n\n\n\n<p>This often occurs when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>M\u00e3 t\u00f9y ch\u1ec9nh \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00eam kh\u00f4ng ch\u00ednh x\u00e1c<\/li>\n\n\n\n<li>The theme is outdated<\/li>\n\n\n\n<li>The theme is incompatible with the latest WordPress version<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. Corrupted WordPress Core Files<\/h3>\n\n\n\n<p>Sometimes WordPress files become corrupted during an update or due to server issues.<\/p>\n\n\n\n<p>This can cause the system to fail during execution, leading to the critical error message.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. PHP Memory Limit Problems<\/h3>\n\n\n\n<p>WordPress runs on PHP, and each website has a memory allocation limit.<\/p>\n\n\n\n<p>If a script requires more memory than the server allows, WordPress may stop running and display the critical error message.<\/p>\n\n\n\n<p>This can occur when:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Large plugins are installed<\/li>\n\n\n\n<li>Complex themes are used<\/li>\n\n\n\n<li>The site handles high traffic<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5. Failed Updates<\/h3>\n\n\n\n<p>Updating WordPress, plugins, or themes is essential for security and performance. However, if an update fails midway due to a server interruption or compatibility issue, it can break the site.<\/p>\n\n\n\n<p>This may cause WordPress to show the critical error message instead of loading the website.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix \u201cThere Has Been a Critical Error on This Website\u201d in WordPress<\/h2>\n\n\n\n<p>Fortunately, several troubleshooting steps can help resolve the issue.<\/p>\n\n\n\n<p>Below are the most practical solutions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">1. Check Your Email for Recovery Mode<\/h2>\n\n\n\n<p>Modern WordPress versions send an automatic email to the site administrator when a critical error occurs.<\/p>\n\n\n\n<p>This email usually contains:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Plugin ho\u1eb7c giao di\u1ec7n g\u00e2y ra s\u1ef1 c\u1ed1<\/li>\n\n\n\n<li>Li\u00ean k\u1ebft \u0111\u0103ng nh\u1eadp ch\u1ebf \u0111\u1ed9 ph\u1ee5c h\u1ed3i \u0111\u1eb7c bi\u1ec7t<\/li>\n\n\n\n<li>Instructions for resolving the problem<\/li>\n<\/ul>\n\n\n\n<p>Using Recovery Mode, you can log into WordPress even when the site is broken and disable the problematic plugin or theme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">2. Disable All Plugins<\/h2>\n\n\n\n<p>If you suspect a plugin conflict, disabling plugins is often the fastest way to identify the issue.<\/p>\n\n\n\n<p>You can do this through FTP or your hosting file manager.<\/p>\n\n\n\n<p>C\u00e1c b\u01b0\u1edbc:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Access your website files<\/li>\n\n\n\n<li>Navigate to the wp-content folder<\/li>\n\n\n\n<li>Rename the plugins folder to something like:<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-preformatted\">plugins-disabled<\/pre>\n\n\n\n<p>This will deactivate all plugins at once.<\/p>\n\n\n\n<p>If the website starts working again, you can rename the folder back and activate plugins one by one to find the faulty one.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">3. Switch to a Default WordPress Theme<\/h2>\n\n\n\n<p>If the issue is caused by your theme, switching to a default WordPress theme can help.<\/p>\n\n\n\n<p>C\u00e1c b\u01b0\u1edbc:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Go to wp-content\/themes<\/li>\n\n\n\n<li>\u0110\u1ed5i t\u00ean th\u01b0 m\u1ee5c ch\u1ee7 \u0111\u1ec1 \u0111ang ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ea1n.<\/li>\n\n\n\n<li>WordPress will automatically switch to a default theme such as:<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Twenty Twenty-One<\/li>\n\n\n\n<li>Twenty Twenty-Two<\/li>\n\n\n\n<li>Twenty Twenty-Three<\/li>\n<\/ul>\n\n\n\n<p>If the website loads normally after this change, the theme likely caused the problem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. Enable WordPress Debug Mode<\/h2>\n\n\n\n<p>Debug mode allows WordPress to display detailed error messages that reveal the source of the issue.<\/p>\n\n\n\n<p>To enable it, edit the wp-config.php file and add the following lines:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">define('WP_DEBUG', true);<br>define('WP_DEBUG_LOG', true);<br>define('WP_DEBUG_DISPLAY', true);<\/pre>\n\n\n\n<p>After enabling debug mode, reload your website.<\/p>\n\n\n\n<p>WordPress may show the exact file or plugin responsible for the error.<\/p>\n\n\n\n<p>Once troubleshooting is complete, it is recommended to disable debug mode again.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. Increase PHP Memory Limit<\/h2>\n\n\n\n<p>If the problem is related to insufficient memory, increasing the PHP memory limit may resolve it.<\/p>\n\n\n\n<p>Edit wp-config.php and add:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">define(&#039;WP_MEMORY_LIMIT&#039;, &#039;256M&#039;);<\/pre>\n\n\n\n<p>This increases the amount of memory available to WordPress.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">6. Reinstall WordPress Core Files<\/h2>\n\n\n\n<p>If core files are damaged, reinstalling WordPress can restore missing or corrupted files.<\/p>\n\n\n\n<p>C\u00e1c b\u01b0\u1edbc:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Download the latest WordPress version<\/li>\n\n\n\n<li>Upload the wp-admin and wp-includes folders<\/li>\n\n\n\n<li>Replace the existing ones<\/li>\n<\/ol>\n\n\n\n<p>Make sure not to overwrite the wp-content folder, which contains your themes, plugins, and uploads.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">7. Contact Your Hosting Provider<\/h2>\n\n\n\n<p>Sometimes the error is caused by server-level issues, such as:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>PHP configuration problems<\/li>\n\n\n\n<li>Database issues<\/li>\n\n\n\n<li>Hosting resource limits<\/li>\n<\/ul>\n\n\n\n<p>In these cases, contacting your hosting provider may be necessary. They can review server logs and identify the exact cause.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Preventing Critical Errors in WordPress<\/h2>\n\n\n\n<p>While errors cannot always be avoided, following best practices greatly reduces the risk.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Keep WordPress Updated<\/h3>\n\n\n\n<p>Regularly updating:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>WordPress core<\/li>\n\n\n\n<li>Plugin<\/li>\n\n\n\n<li>Ch\u1ee7 \u0111\u1ec1<\/li>\n<\/ul>\n\n\n\n<p>helps maintain compatibility and security.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Use Trusted Plugins and Themes<\/h3>\n\n\n\n<p>Install plugins and themes only from reputable developers or official marketplaces.<\/p>\n\n\n\n<p>Poorly coded extensions are one of the leading causes of critical errors.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Create Regular Backups<\/h3>\n\n\n\n<p>Backups ensure that your website can be restored quickly if something breaks.<\/p>\n\n\n\n<p>Many hosting providers offer automatic backups, or you can use backup plugins.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Test Changes on a Staging Site<\/h3>\n\n\n\n<p>Before making major updates or installing new plugins, test them on a staging environment.<\/p>\n\n\n\n<p>This prevents issues from affecting your live website.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why This Error Matters for Online Businesses<\/h2>\n\n\n\n<p>For businesses running WordPress stores or service websites, downtime can mean:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u01b0\u1ee3ng xe c\u1ed9 b\u1ecb m\u1ea5t<\/li>\n\n\n\n<li>Reduced sales<\/li>\n\n\n\n<li>Lower search rankings<\/li>\n\n\n\n<li>Damaged customer trust<\/li>\n<\/ul>\n\n\n\n<p>This is especially important for e-commerce and international websites, where stability and performance directly affect conversions.<\/p>\n\n\n\n<p>A well-designed and properly maintained website significantly reduces the risk of technical failures.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1eddi k\u1ebft<\/h2>\n\n\n\n<p>The message \u201cthere has been a critical error on this website. wordpress\u201d can seem alarming, but it usually indicates a manageable issue such as plugin conflicts, theme problems, or server configuration limits.<\/p>\n\n\n\n<p>By identifying the root cause and following structured troubleshooting steps\u2014like disabling plugins, switching themes, enabling debug mode, or increasing memory\u2014you can restore your website quickly.<\/p>\n\n\n\n<p>Maintaining a stable WordPress website requires more than just fixing errors. It also involves thoughtful design, performance optimization, and a clear structure that ensures your site runs smoothly as your business grows.<\/p>\n\n\n\n<p>T\u1ea1i <strong><a href=\"https:\/\/www.airsang.com\/vi\/\">AIRSANG<\/a><\/strong>, we specialize in helping brands build professional websites for global markets. Our team focuses on conversion-driven website design, <strong><a href=\"https:\/\/www.shopify.com\/\" target=\"_blank\" rel=\"noopener\">Shopify<\/a><\/strong> V\u00e0 <strong><a href=\"https:\/\/www.WordPres.com\" target=\"_blank\" rel=\"noopener\">WordPress<\/a><\/strong> store experiences, and cross-border e-commerce solutions that help businesses present their products clearly and effectively.<\/p>\n\n\n\n<p>If you are building or improving your website and want a design that is both visually compelling and technically reliable, <strong><a href=\"https:\/\/www.airsang.com\/vi\/ve-chung-toi\/\">AIRSANG<\/a><\/strong> is here to help. Our experience in international website design ensures your brand stands out while maintaining a stable, high-performance online presence.<\/p>","protected":false},"excerpt":{"rendered":"<p>WordPress powers millions of websites worldwide, from personal blogs to large e-commerce platforms. While it is one of the most flexible and user-friendly website systems&#8230;<\/p>","protected":false},"author":2,"featured_media":8221,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,20,1],"tags":[],"class_list":["post-8217","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-case-studies","category-industry-insights","category-web-knowledge"],"_links":{"self":[{"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/posts\/8217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/comments?post=8217"}],"version-history":[{"count":2,"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/posts\/8217\/revisions"}],"predecessor-version":[{"id":8223,"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/posts\/8217\/revisions\/8223"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/media\/8221"}],"wp:attachment":[{"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/media?parent=8217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/categories?post=8217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.airsang.com\/vi\/wp-json\/wp\/v2\/tags?post=8217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}