It showed up this night and I installed it. After this my iPod Touch wasn't booting anymore. Heres the solution for this bug:
1. Press and hold Lock & Home button until the iPhone/iPod Touch switches off.
2. Press and hold the Home button and connect it to your Mac/PC with running iTunes.
3 iPhone/iPod Touch should switch to "Recovery" mode.
4. Press Restore and DONT load a older backup, choosing this made the bug appear again.
I hope this helps anyone
Edit:
The restore may take about 2 hours, forget to mention this. (Restoring my iPod Touch was taking 2h 13min)
Edit 2:
I figured out, that several apps are also crashing the software, so only install what you really need
Edit 3:
DON'T install ANY software on it. It keeps crashing when I try to install
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