Dear community,

I have a 70c for gaming but when I try to deinstall an app the screen gets black with incomplete "ARCHOS Entertainment..." lettering and when the normal screen is back, nothing has been changed. I tried it with the Android settings, with the Google Play store, with CCleaner and also with a few other cleaning apps, all with the same result.
Is there a special trick, how to deinstall software, that was installed with the Playstore? Or is there something wrong with the tablet? It is only about a month old, I don't want to lose my progression at my games again 🙁
greetings
Katrin