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.
I had to delete composer entirely in plesk extensions then reinstall it to solve this issue. after having the same issue as yourself, though mine resulted from moving the root folder of the subdomain, it could no longer find the composer.json and was not getting the new document root in PHP...