Backup Module Cron Exception

I set up backup in FreePBX Distro (latest) which seems to work. But now I receive the following exceptions when the backup is called by Cron. The backup files itself are created and uploaded to my backup storage (NAS). Any idea who to fix this or get at least more information?

`Initializing Backup 1
Backup Lock acquired!
Running pre-backup hooks…
Adding items…
Building manifest…
Creating backup…
Storing backup…
PHP Fatal error: [] operator not supported for strings in /var/www/html/admin/modules/backup/ on line 345
Whoops\Exception\ErrorException: [] operator not supported for strings in file /var/www/html/admin/modules/backup/ on line 345
Stack trace:

  1. () /var/www/html/admin/modules/backup/`

Nobody any idea or the same problem? Do I need to provide something else?


Try updating and if it doesn’t work open a ticket at

Good luck and have a nice day!