Recently, this error occurred.
Google Play opens and closes on my Huawei tablet again and again
System was already updated after the error occurred and the tablet would be restarted more often.
Delete the updates of the Google Play Store, before the cache, then turn off the tablet briefly and back on.
Did not help: /
Download the APK of the Google Playstore and test if it works that way, you have to allow the loading from an unknown source and agree
https://www.heise.de/...-apk-92066
https://mobilsicher.de/schritt-fuer-schritt/apps-aus-apk-datei-installieren-mit-android-8
https://www.pctipp.ch/tipps-tricks/kummerkasten/mobile/artikel/android-wo-ist-apps-aus-unbekannten-quellen-hingekommen-90373/