>>>>Current location of the application (on the server) is c:\myappprod\
>>>>The application used to reside in the folder c:\myapp but because of some issues on the server, the IT moved it to the folder c:\myappprod (added suffix 'prod').
>>>>
>>>>The folder c:\myapp is still on the server but when I try to go there, the access is denied.
>>>>
>>>>Note that in the error it does not have the current location \myappprod.
>>>>
>>>>How could it be that the error refers to the old location of the application?
>>>
>>>Maybe it reports the compile-time location?
>>
>>That would make sense but why it also refers to the customer server?
>>
>>Update: Also, the compile time folder name is different than the deployment folder name.
>
>So I nailed it - a stab in the dark has hit the dark :).
>
>Got another anti-bright idea: maybe what you found wasn't your error - somebody else was running it via that UNC. IOW, maybe that's not your log. Scroll down...

It is my log. I look at the very last records (of this morning US time) where the date and time stamp are today's.
Another thing I noticed is that the error was triggered by something in .MPX file. Although the customer was telling me that he was hitting the error when click on a combo box in one of the reports (Group By). And it would crash before any items in the combo would appear.
I will just put this problem in the column "mystery" :)
Thank you.

UPDATE. I may have gotten it wrong. The error shows the log where everything starts in the menu. And then it ends in the error in the application .exe file. So, the .MPX file has nothing to do with the error.