Users working on PDF file, suddenly we will receive the error popup, and we are not able to do anything. We need to fully end the session and reconnect.

Users working on PDF file, suddenly we will receive the error popup, and we are not able to do anything. We need to fully end the session and reconnect.

It is causing major issue in our scenario, because user will work on big file say 500 to 1000 page, while working suddenly error popups and they need to rework from the first. Kindly help us to resolve this issue.

The PDF is running in azure virtual machine, all users have adobe acrobat pro license, they work the file in network drive.