Hello, Two hours ago I suffessfully completed updating the MediaWiki installation on one of the sites I managed with ISPConfig 3. It involved reconfiguring .htaccess files in the website's subdirectories. Now, when I try to open ISPConfig's Email menues (i.e. Email > Email Mailbox), the loading indicator appears briefly and nothing happens - instead of opening the proper configuration page, the welcome one remains on. This happens only under Email, the other sections are working fine. I cannot confirm whether this appeared today or has been going on for some time because I haven't had to configure emails for several weeks. Could you help me identify the reason for this behaviour, please?