When you press the e-mail button in the main menu, it does not display anything in the lower right of the screen in the mail section. The main navigation menu and the bottom left work correctly. The bottom right does not change its contents by clicking on the right menu (domain, mailbox, white list, etc.) Installation in Ubuntu 16.04.3, following manual of howtoforce: The Perfect Server - Ubuntu 16.04 (Xenial Xerus) with Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.1 ISPConfig updated to 3.1.7p1 I would appreciate any help. Thank you very much
