I am experiencing issues with our Service Desk Plus server. Originally the site was exhibiting odd behaviour( ie: clicking on a specific ticket would just reload the the list of tickets ect ). So I rebooted the server, which normally fixes the issue but then I found that the server would get hung up while loading Manage Engine. After a couple of attempts to get it to boot up I got an "Invalid license file" error. The exact error code is Error: 535.

 

Can anybody help me out?