Zitat (davide@desimonej.it)[12-Nov-2019 12:10:12 Europe/Berlin] Mail directory is not readable/writable by webserver: /home/xrlf98iy/data/gotoelearning/mail
[12-Nov-2019 12:10:18 Europe/Berlin] Mail directory is not readable/writable by webserver: /home/xrlf98iy/data/gotoelearning/mail
[12-Nov-2019 12:24:15 Europe/Berlin] count(): Parameter must be an array or an object that implements Countable
The data directory outside of the web root (in your case probably /home/xrlf98iy/data) and all subfolders/files must be writeable by the web user.
You can, however, remove write permission from all files and directories inside the web root, exept for the ones listed in the section "File Access Rights" of the installation documentation:
https://docu.ilias.de/goto_docu_pg_75024_367.html#file-access-rights