Hi, sorry, my English is not very good. I needed PHP version 8.1 for my website. The current version of PHP is 7.4 My system is UBUNTU 20.04. After installing PHP version 8.1, ISPConfig3 no longer works. I am asking for your help! What should I do to get it working again? I will be grateful for your help!
Restore the default php back to php7.4 for Ubuntu 20.04 server. You should find multiple php tutorial useful as it does mention on how to do that.
change the default php versions back to 7.4 update-alternatives --config php update-alternatives --config php-cgi update-alternatives --config php-fpm.sock hopefully you're using the ondrej repo for php, so the new php installs are additional, not replacing the existing install. then configure the settings for the additional php versions in the ispconfig interface. if you just search the forums or the tutorials for 'ispconfig additional php' you should find multiple results showing how.
I am very, very grateful for your help! I made the settings according to the site howtoforge.com/ispconfig-php-ubuntu/#php--8 But you need to read the manuals in full. I read it selectively Thank you very much and sorry for my bad English.