As we don’t own many dm8000 boxes you’d best create a logfile what happens when the errors occur.
With your remarks it’s very difficult to offer a solution. Apart from this if the cause might be in the drivers this can’t be solved.
So first offer an enigma log?
Edit: Why do you use such odd fonts. Just use the default font. If you use Google translate use ‘copy the translation’ and paste the text overhere.