Backend Returns internal Server Error, while Frontend works

  • Resolved noyb777

    (@noyb777)


    1 year, 10 months ago

    Hi community,
    there is an issue with one of my websites, galabau-lang.de.

    The Frontend works perfectly fine but if I want to access the backend a 500 server error is returned. The pages backend urls all seem to redirect to …/wp-admin besides /wp-login and /wp-login.php. After logging in, I again am redirected to /wp-admin/. When visiting any existing page after logging in, the wp-backend topbar ist shown, so the login works and the credentials are valid. I can even edit pages with beaver builder (pagebuilder plugin), but not the WP Default editing mode. The Dashboard, Media Files and any other backend site I cannot access since they are all redirected to /wp-admin/ which returns a server error, as mentioned before.

    The website is hosted by ionos and I recently moved the Webspace and Database to a new ionos account, without changing the url. So it is likely that i messed something up in the process. For example, the database type used to be MySQL and is mariadb now, could this cause the problem?

    I’ve already tried the following steps to fix the issue:
    – changed name of plugin/theme folders and htaccess via Ftp
    – uploaded fresh versions of wp-admin and wp-includes via FtP
    – checked database connection in wp-config
    – checked site name in database options
    – checked server logs for hints
    – checked file permissions
    – raised PHP memory Limit in PHP.ini

    None of this worked so far.

    I am very thankful for any further advice or insights on how to fix this.

    If you need further information let me know.

    JR

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

Viewing 4 replies - 1 through 4 (of 4 total)
  • Moderator t-p

    (@t-p)

    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, 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).

    Thread Starter noyb777

    (@noyb777)

    First thanks for your quick reply.
    I,ve already renamed the folders Plugins, themes and the htaccess before without any success. In the linked guide for manually resetting plugins two options to do this are mentioned.

    The second doesnt work since /wp-admin/plugins.php returns a server Error aswell.

    The first one recommends altering the table wp_options, which apparently isn’t existing in the connected database. There is a table called lykxCIDoptions, but it doesn’t contain a option_name called active_plugins. Might the absence of the wp_options table be the problem? (In General all Tables start with “lykxCID” and none start with “wp”)

    • This reply was modified 1 year, 10 months ago by noyb777.
    Thread Starter noyb777

    (@noyb777)

    Update: the table Pr?fix IykxCLDk is defined Like this in the wp-config. so there shouldnt be an issue with this.

    Thread Starter noyb777

    (@noyb777)

    Problem resolved: it had something to do with the php.ini file in the wp_admin folders. After renaming it, the Server Error was gone.

Viewing 4 replies - 1 through 4 (of 4 total)
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