Servicedesk Crashes at Start up with Error Code 353

Servicedesk Crashes at Start up with Error Code 353

For no apparent reason our ServiceDesk Plus server crashed, its running Windows 2003, MYSQL and the Apache Webserver (supplied with ServiceDesk). Now when we try and restart the server we receive a dialog box over the ServiceDesk splash screen saying that Error Code 353 Invalid License file.

Please help!
Thanks


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