WordPress Localhost Works but Admin Panel Returns 500 Error After Update

  • psikiyatrirandevu

    (@psikiyatrirandevu)


    5 months, 3 weeks ago

    I’m running a WordPress site on localhost (Apache + MySQL). After updating WordPress and a few plugins, the frontend loads correctly, but the wp-admin panel returns a 500 Internal Server Error. I’ve already enabled WP_DEBUG, checked the error logs, increased PHP memory limits, and disabled all plugins directly from the database, but the issue still persists. File permissions seem correct, and .htaccess has been regenerated. What advanced debugging steps would you recommend to isolate whether this is caused by PHP version conflicts, corrupted core files, or server configuration issues?

    • This topic was modified 5 months, 3 weeks ago by Jan Dembowski. Reason: Short link expanded, don't use those here

    The page I need help with: [log in to see the link]

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  • Moderator t-p

    (@t-p)

    5 months, 3 weeks ago

    Also check the error logs on your server for a more specific error message, which may give a clue to why this is happening on your website/server. If you need help locating them, ask your hosting provider to help you with that.

    You said you already tried disabling all plugins. If that does not resolve the issue, 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 (theme functions can interfere like plugins).

    If the above steps do not help, try Manually upgrading. When all else fails, download a fresh copy of the WordPress (top right on this page) to your computer, and use that to copy up. Access your server via SFTP or FTP, or a file manager in your hosting account’s control panel (consult your hosting provider’s documentation for specifics on these), and delete then replace the wp-admin and wp-includes folders on your server (NOTE: do not delete the wp-content directory or your wp-config.php file). Read the Manual Update directions first.

    BACKUP: If you haven’t already done, always backup everything (including your database) before doing any actions, just in case something really goes wrong. You can never have enough backups! See https://ww.wp.xz.cn/support/article/wordpress-backups/

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