Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
The APS Catalog has been deprecated and removed from all Plesk Obsidian versions. Applications already installed from the APS Catalog will continue working. However, Plesk will no longer provide support for APS applications.
Please be aware: with the Plesk Obsidian 18.0.78 release, the support for the ngx_pagespeed.so module will be deprecated and removed from the sw-nginx package.
Out of interest, do you run Roundcube?
If you look at this thread: Question - Plesk Obsidian and PHP 8 compatibility
You'll see, that with effect from Plesk Obsidian 18.0.49, Roundcube runs on PHP 8.0. So ...IF... you fall into the criterea that's covered in that thread, then that might be a cause of the issue that you've experienced. From our own past experience, we had a similar error (but on earlier PHP and Roundcube releases).