{TICKETURL} can not be accessed?

Hello,

After submitting ticket, user will receive email containing information about the ticket.

I use parameter {TICKETURL} so user can manage the ticket themselves.

However, the generated URL from {TICKETURL} produce HTTP Error 500. The URL format are (real domain and email was changed):

https://mydomain/?page_id=126&jstmod=ticket&jstlay=ticketdetail&task=showticketstatus&action=jstask&email=email@mydomain&ticketid=XXXXXX

Please help ??

Thanks,
Syauqie

https://www.ads-software.com/plugins/js-support-ticket/