Requests Failing in GIL-Find

Back in March, Sonya sent an email about patrons having problems requesting items through GIL-Find. It appears that it is still happening. Here is a screenshot of the problem. A patron will request an item be sent from another campus, and then when they press "submit request" an error message will appear. There is no reason for the error message. The request will go through if you use GIL-Classic.