Hi @lepmad,
May I suggest that you start by installing and running the [link|https://github.com/waynebonc/iDeviceLogAnalyzer-public|iDevice Panic Log Analyzer|new_window=true]?[br]
This is a very useful tool when working with panic logs.
This is a starting answer, but if you have updates after running the analyzer post updates to the question or comment.[br]
If you can (and if it's easier), update your question with images / screenshots from the analyzer, so we can see what it tells you.[br]
[guide|21499|How to add images to existing question|new_window=true].