Hello!

I’m trying to create new groups on my BuddyPress X wordpress Theme but I can’t due to this message: There has been a critical error on this website.

Please help!

The error log for the site should provide some insight as to the source/cause of the critical error.

Only shows the message I have written before and this link: Learn more about troubleshooting WordPress.

What you posted was the error message provided by WordPress. If this is a production site, you should have access to the error log via your hosting services cpanel or equivalent interface.