Hey @dd214 you should check the PHP.ini you created for i-doit. The path is like /etc/php/7.x/mods-available/i-doit.ini Where the 7.X is the used PHP Version. If the file does not exist, create one. See here https://kb.i-doit.com/pages/viewpage.action?pageId=36864037#DebianGNU/Linux-PHP