Scrip Commit 23 died

I keep getting a failure email during one of the daily cron processes:
This is the error found in systemd:
Seems to be an issue with the queue but I can’t immediately tell what the issue is.

[26035] Scrip Commit 23 died. - Can't use an undefined value as an ARRAY reference at /opt/rt4/local/plugins/RT-Action-MoveQueueBySubject/lib/RT/Action/MoveQueueBySubject.pm line 102
Stack:
[/opt/rt4/local/plugins/RT-Action-MoveQueueBySubject/lib/RT/Action/MoveQueueBySubject.pm:102]
[/opt/rt4/sbin/../lib/RT/ScripAction. pm: 182]
[/opt/rt4/sbin/../lib/RT/Scrip.pm:664]
[/opt/rt4/sbin/../lib/RT/Scrips.pm:236]
[/opt/rt4/sbin/../lib/RT/Transaction.pm:213]
[/opt/rt4/sbin/../lib/RT/Record.prn:1670]
[/opt/rt4/sbin/../lib/RT/Ticket.pm:554]
[/opt/rt4/sbin/../lib/RT/Interface/Email/Action/DefauIts.pm:100]
[/opt/rt4/sbin/../lib/RT/Interface/Email/Action/DefauIts.pm:135]
[/opt/rt4/sbin/../lib/RT/Interface/Email/Action/DefauIts.pm:121]
[/opt/rt4/sbin/../lib/RT/Interface/Email.pm:424]
[/opt/rt4/sbin/../lib/RT/Interface/Email.pm:247]
[/opt/rt4/share/html/REST/1.0/NoAuth/mail-gateway:61]