Unable to set ticket status to Resolved

Unable to set ticket status to Resolved

Hi,
 
On changing a ticket's status from Open to  Resolved and then selecting Update Request, we receive:
 
FAILURE :Exception occurred while performing the operation.
 
This is regardless of the technician used.
 
The service has been restarted.
The server has been rebooted.
The latest hotfix has been applied.
ManageEngine ServiceDesk Plus 8.2.0 Build 8210 (issue occurred also under 8.2.0 Build 8207).
Windows Server 2008 R2 Enterprise SP-1 x64.
 
This has been tested in IE 10, Firefox 23 & Chrome 28.
 
I look forward to a fast response.
 
Regards,
 
Steve Gray

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