Requester cannot view resolution to his own ticket

Requester is getting "Request does not fall under your permitted scope.  So you are not authorized to update the same." error when attempting to view the resolution to his ticket.  Earlier, this ticket was manually assigned to a group by me (admin) because the template did not have a group set by default.  How can I allow the requester to view his ticket again?

ManageEngine ServiceDesk Plus 8.0.0 Build 8015