Hi
@MicheleB,
Got some news for you. We've performed extensive investigation of how WordPress Toolkit works under CloudLinux. We've consulted Plesk team and CloudLinux team multiple times to make sure we're correctly assessing the situation.
Based on the investigation results, we have identified two main issues that prevented WPT from working correctly on CloudLinux -- one with CageFS, one with alt-php. Plesk team has already fixed both issues in Plesk Obsidian updates (18.0.27 and 18.0.36). As a result,
WordPress Toolkit should now work fine on CloudLinux, if you have both the latest Plesk Obsidian and WordPress Toolkit installed.
I'm sorry it took so long to address these issues, but WordPress Toolkit depends on the underlying platforms (Plesk and CloudLinux) for many things, and investigating issues happening at the junction of 3 different products from different companies is a very time-consuming and difficult process. Not everything can be fixed quickly in WPT itself, unfortunately.
Anyway, everything should work now, and if you happen to find any other issues related to WordPress Toolkit and CloudLinux, please let me know.