upgraded to Version : 5.5.0 now helpdesk crashes

upgraded to Version : 5.5.0 now helpdesk crashes

Hi since we have upgraded to the latest version Version : 5.5.0
Build Number : 5501

we seem to have some issues when the helpdesk software auto refreshes.
The only way to get back to the helpdesk is to crash out and log in again.

I have atached the screen dump of the error

can you help







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