I am attempting to install the update ISPConfing by command: php -q update.php but it failed with error: >> Update Operating System: Ubuntu 16.04.1 LTS (Xenial Xerus) This application will update ISPConfig 3 on your server. Shall the script create a ISPConfig backup in /var/backup/ now? (yes,no) [yes]: no Checking ISPConfig database .. OK PHP Warning: Illegal string offset 'permissions' in /usr/src/ispconfig3_install/install/lib/install.lib.php on line 631 PHP Fatal error: Uncaught Error: Cannot use string offset as an array in /usr/src/ispconfig3_install/install/lib/install.lib.php:631 Stack trace: #0 /usr/src/ispconfig3_install/install/lib/update.lib.php(137): ini_to_array('[permissions]\na...') #1 /usr/src/ispconfig3_install/install/update.php(288): updateDbAndIni() #2 {main} thrown in /usr/src/ispconfig3_install/install/lib/install.lib.php on line 631 Can you please advise what could be the problem? Many thanks. Liquid