If your Report Server 2008 instance is configured as SharePoint integrated and you get an exception like this one, keep on reading.
Additionally to the exception in the browser, the Eventlog revealed two more exception which are relevant to the SSRS exception. One was about the SSRS process, which quit unexpected, the other one from ASP.NET.
- “The SQL Server Reporting Services (MSSQLSERVER) service terminated unexpectedly. It has done this 6 time(s). The following corrective action will be taken in 60000 milliseconds: Restart the service.” Event ID 7031
- “.NET Runtime version 2.0.50727.4952 - Fatal Execution Engine Error (000007FEF523FA42) (80131506)”, Event ID 1023
My solution was to log on once to the SharePoint server as the account, which is used by the Reporting Services (remember: we’ve configured SSRS in SharePoint integrated mode).