WordPress can’t install plugins

Try:
– Try installing or upgrading the Plugin manually.

Useful tutorials:

– https://www.wpbeginner.com/beginners-guide/how-to-manually-update-wordpress-plugins-via-ftp/
– https://www.wpbeginner.com/plugins/why-cant-i-add-or-install-plugins-in-wordpress/

Check the answaer of the support!

***
`we have reviewed the permissions on your server and some folders this mail generating this notice

This means that you have installed or copied the files as root, and therefore plesk does not have permissions to access them, generating the error you indicate.`
***

Now it’s fixed, thank you