Server internal 500 ,Application has multi-upload

Hello everybody,

It have something wrong when i generate all of my project then run the application that has multi-upload ( type document(database) ) function,it’s show “server internal 500”.
I don’t know what’s happen but that application hasn’t been updated for a long time. Older version i deployed on production server ,It work correctly.
I think have it something wrong when have any update???.
So give me some help please.

Thank you.

report_upload.PNG

See on bug section there are some explanation of multiupload problem and are 3 week that scriptcase do not correct the problem and others bugs probably is waiting to release the 8.2
hopefully good, that there are no more of errors now on 8.1