Why does this error occur (see picture below)?

Moin, I like to play Pokemon GO, since the latest update, the message comes down the picture. Have a Huawei P10 Lite and the second picture are again the device information

Thanks in advance

It's quite possible that Google Play Services is needed for the game. Since Google Huawei has withdrawn the Android license, it may be that the game no longer works.

Pokemon update you have made! Have you also updated your operating system? Should you do every now and then!

There's currently no update