I don't understand Danish, if you are looking for help here you should use English as the language and (temporarily) set the language in the designer accordingly.
What I've noticed after a quick look is that you're using fairly old extensions (versions). As far as possible, you should update these extensions. That would at least be possible for @Taifun's TaifunFile extension (Feb 13th, 2021: Version 13a).
Note:
It would be best if you created the smallest possible test aia (with English blocks, see also here) with which the problem can be reproduced.