There is no such error if you change it to another topic! For example, the default WordPress theme.
Maybe you need to add some code to avoid this error?
Hello,
Thank you for contacting Rank Math and bringing your concern to our attention. Iβm sorry for any inconvenience this issue may have caused you.
You must have received an email from WordPress with the details about the error. Please share it with us here so we can check and assist you further.
If you haven’t received the email with the error code, you can follow this guide to enable debugging in WordPress
https://wordpress.org/support/article/debugging-in-wordpress/ or you can get in touch with your web host, and they will help you locate the log file.
Having an error log will help us determine what is causing the critical error on your website.
Looking forward to helping you.
Thank you.
Figured out the problem! Changing the PHP version to an earlier one helped
Hello,
Glad that everything has been sorted out. If you have any other questions in the future, know that we are here to help you.
Thank you.