Do a search for the thread " Internal Stack error"
Here is a hint:
Quote from Vman on 01/05/17 at 13:35:02:It appears that in EVO that when a screen loads there is a delay before it is ready to take input. For example, In EVO load up SO-A (in my case, it lists the open Sales Order. If you try to click on a SO before the top entry is highlighted, you get an Access Violation. This one is recoverable. If the program ignored input until it was ready, this would not happen.
There may also be an issue when you have made an entry such as a SO line item and then move too quickly to input something else.
Maybe EVO (TAS?) doesn't buffer well or it may not be possible to program in short "pauses" where you can't click/input until it's ready.