Reason: "both signed and unsigned version apk can't login,both Google and apple".
Checked by myself
The login works just fine on my devices. If you have any issues, then it has to be your device as no other person reported such problems with this game. Try another device and/or emulator. The login also works on my own phone, just haven't made a screenshot.
Proof:
Emulator, LDPlayer 9 Version 9.1.34.0(64), Android 9.0, rooted & patched with Lucky Patcher:
Google Play store login:
After login, "Session not found" appeared, and then "verification failed", can only be forced to quit. Various methods were tried many times, and it was the same every time.