BizTalk - Start 'Rule Engine Update Service' Errors

Question

I'm on a QA environment, and can talk to the BizTalk Admin tomorrow. Apparently, I'm the first person to call a BizRule from an orchestration, and the orchestration is giving error:

Inner exception: The type initializer for 'Microsoft.RuleEngine.RuleEngineCache' threw an exception.

I checked, and the Rules Engine is configured on this machine. But the "Rule Engine Update Service" was not running. I tried to start it, and get this error in the "Services" tool:

"The Rule Engine Update Service service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs."

I checked the event log, and for each time I tried to start it, I see this:

Service could not be started. : System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. System.InvalidCastException: Specified cast is not valid.

Any ideas what I can do? I have admin privileges on the machine (BizTalk 2013/R2).

Answer 1

Our BizTalk Admin corrected the CacheEntries using RegEdit. The one on the right was the other server in the group that was working.