Internal Server Error inrésolvable + FastCGI error logs

  • Hello,

    My current WP configuration

    PHP/MySQL version: 8.0.19
    Theme used: Hello + Elementor
    WordPress version 6.1.1
    Extensions in place :
    boxtal-connect, cf7-zoho, contact-form-7, contact-form-entries, cookie-law-info, custom-css-js, custom-order-statuses-for-woocommerce, disable-woocom-logout-confirmation, dynamic-visibility-for-elementor, easy-addons-for-elementor, elementor, elementor-pro, essential-addons-for-elementor-lite, feedzy-rss-feeds, folders, google-site-kit, happy-elementor-addons, hide-my-wp, http2, push-content, integration-of-zoho-crm-and-contact-form-7, loco-translate, official-facebook-pixel, powerpack-lite-for-elementor, quick-view-and-buy-now-for-woocommerce, ternporary-login-without-password, visibility-logic-elementor, woo-zoho, woocommerce-gateway-stripe, woocommerce-paypal-payments, woocommerce-pdf-invoices-packing-slips, woocommerce-subscriptions, woolentor-addons, woolentor-addons-pro, wordfence, wordpress-seo, wp-file-manager, wp-mail-smtp, wp-optimize, wp-smushit, wp-staging, wpvivid-backuprestore, zoho-mail, zoho-salesiq, zoho, subscriptions
    Name of the host: OVH
    Site address: https://lynkx.eu/accueil

    Problem(s) encountered :

    Hello everyone, I’m coming to you because I can’t get rid of a 500/Internal Server Error present on my whole site and in my admin as well.

    Here is what I have already done:

    • Switched to the original theme
    • Disabled my extensions via FTP FileZilla by changing the name of the plugins folder
    • Increased the PHP memory limit to 512M,
    • Increased the maximum PHP upload size,
    • Increased the PHP execution limit,
    • Disabled all my extensions and tested if any of them triggered the error
    • Regenerated the wp-admin and wp-includes files,
    • Fixed and optimized the DB
    • Regenerated the .htaccess file
    • Removed the cache/cookies
    • Checked a billion forums
    • Checked my hosting type (It’s a 2G Performance hosting)
    • Sent a ticket to OVH (waiting for a response)
    • One of the last actions I did on the site was to add the Woocommerce Subscription extension and even before that I installed WP-Optimizer.

    One observation: the error appears when I activate a certain number of extensions (the number varies according to which extensions I activate) for example, if I deactivate all the extensions, no more error, if I activate 4 or 5 (it doesn’t matter which ones) the 500 error happens say once in 10 page refreshes. On the other hand, if I activate all the extensions, the 500 error is always present.

    Here are the OVH logs concerning error 500 (internal server error) which occurs at intervals during page refreshes:
    [Mon Feb 13 11:03:48 2023] [error] [client 90.37.118.138] host lynkx.euConnection reset by peer: AH10143: FastCGI: comm with server “/homez.1611/jkmvtrm/www/index.php” aborted: read failed
    [Mon Feb 13 11:03:48 2023] [error] [client 90.37.118.138] [host lynkx.eu] AH10149: FastCGI: incomplete headers (0 bytes) received from server “/homez.1611/jkmvtrm/www/index.php”
    [Mon Feb 13 11:03:48 2023] [error] [client 90.37.118.138] [host lynkx.eu] AH10157: FastCGI: An error happened during Fastcgi processing, fallback to CGI
    [Mon Feb 13 11:03:48 2023] [error] [client 90.37.118.138] [host lynkx.eu] End of script output before headers: index.php

    Thank you in advance, I bless whoever can help me!

Viewing 2 replies - 1 through 2 (of 2 total)
  • Moderator t-p

    (@t-p)

    Internal server errors (error 500) are often caused by plugin or theme function conflicts, so if you have access to your admin panel, try deactivating all plugins. If you don’t have access to your admin panel, try manually resetting your plugins (no Dashboard access required). If that resolves the issue, reactivate each one individually until you find the cause.

    If that does not resolve the issue, try switching to the default theme for your version of WordPress to rule-out a theme-specific issue. If you don’t have access to your admin panel, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, navigate to /wp-content/themes/ and rename the directory of your currently active theme. This will force the default theme to activate and hopefully rule-out a theme-specific issue.

    If that does not resolve the issue, it’s possible that a .htaccess rule could be the source of the problem. To check for this, access your server via SFTP or FTP, or a file manager in your hosting account’s control panel, and rename the .htaccess file. If you can’t find a .htaccess file, make sure that you have set your SFTP or FTP client to view invisible files.

    If you weren’t able to resolve the issue by either resetting your plugins and theme or renaming your .htaccess file, we may be able to help, but we’ll need a more detailed error message. Internal server errors are usually described in more detail in the server error log. If you have access to your server error log, generate the error again, note the date and time, then immediately check your server error log for any errors that occurred during that time period. If you don’t have access to your server error log, ask your hosting provider to look for you.

    Thread Starter riolynkx

    (@riolynkx)

    Hello @t-p ,

    Thank you for your help, did you saw all what i’ve done in my first message? Absolutely all you are asking me and much more, please take a look again, there are error logs too, from my host, which is related to the Internal Server Error.

    Thanks in advance!

Viewing 2 replies - 1 through 2 (of 2 total)
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