[TYPO3-mvc] Validation Error Localization

[Martin]

Hi again :-)

Another day (or better week) another problem:
I created two custom validators and I also have localized error messages 
in my locallang.xml (english and german) for the respective error codes. 
When the validations fail I get the correct message depending on the 
chosen language but (there's always one isn't it) I also get the message 
"there was an error with the createAction()" (It might be slightly 
different, I can't remember the actual words at the moment). This shows 
up as the very first flash message and I have no idea where it comes 
from. But it's kind of annoying especially in the german version. Any 
idea how / where this comes from and how to localize it or not display it?

Thanks,
Martin