LL 15 enterprise stops working.
We have had LL 15 Enterprise running and working fine for the most part on our production server (we are developing using ASP.NET).
Recently many LL files have begun throwing the “One of the expressions used has an error. Errors are displayed interactively at the design start. In other cases, use debug mode to determine the error.” error. It often appears to happen when there is heavy concurrent use. It would appear to me that LL is getting corrupted.
If I copy the LL files in question to our test server they work fine.
Production server environment: Windows Server Standard SP 2, 64-bit OS, IIS 7
Has anyone run into this? Any ideas on how to fix this? Our customers most affected are getting very upset.