I am getting below error

Examining helpdesk setup for any configuration issues:
In ConfigureHelpdesk.php line 421:
Notice: Undefined offset: 1
uvdesk:configure-helpdesk [-h|--help] [-q|--quiet] [-v|vv|vvv|--verbose] [-V|--version] [--ansi] [--no-ansi] [-n|--no-interaction] [-e|--env ENV] [--no-debug] [--] <command>