If this occurred by activating plugins it looks there there is either an error in the plugin or a conflict.
Your best bet of resolving this would be to contact your hosting provider to see if there is a method of restoring a backup from before you made edits. It is possible to deactivate plugins through WP CLI, so if it is available your host may be able to support that way to deactivate the plugin causing the issue.
This error should be logged, if logging is enabled. That should give you a clue as to the plugin that caused it which you should avoid or raise with the plugin developer
Hello @snoofle ,
When you see a “critical error” message after activating plugins, it almost always means one of those plugins is causing the problem.
The first step to fixing this is to find your website’s error log file. This file contains crucial clues about what went wrong. You can usually access these logs through your hosting account’s control panel (like cPanel) or by contacting your web hosting provider and asking them to provide the “PHP error logs” for your website.
Once you have the error log, it should tell you which specific plugin or theme is causing the fatal error. With that information, you can then connect to your website’s files (usually via FTP or your host’s file manager) and delete or rename the problematic plugin or theme’s folder from the wp-content/plugins/ or wp-content/themes/ directory. After removing the problematic folder, you should then be able to access your WordPress dashboard again.
Please don’t hesitate to ask your hosting provider for help in locating these error logs if you’re unsure how to find them. They are usually very helpful with this kind of issue.
Regards,
The reason for the error should be visible in the error log. You can find it in your hosting area. If necessary, the support of your hosting can help you.
Alternatively, you could also enable debugging in WordPress. How to do this is described here: https://ww.wp.xz.cn/support/article/debugging-in-wordpress/ – also here the support of your hosting can help you if necessary to edit the file accordingly.
In both cases you should be able to see what the cause is in the logfile.
