Richard, in skunks, you do not ask whet the ...
Instead, please catch and throw an exception with a well documented trace back to where the error happened, or where you got lost.
Also indicate what brain server you are running and any thoughts that had been send in the process the error ocured.
If you are brain is in deployment_mode, please indicate a standard error message, like 404(I Forgot) or 503(headache)...