What maintenance? Im still playing it lolUnder maintenance... LoL
Uninstall fb app then u can login with fbCan't login with facebook sign apk + unsign apk force closed every login with facebook...
Tested work perfectly unsign with VMOS with google play game login..
Device Realme 5i Ram 4GB / Rom 64GB android v9.0 NOroot...
Its under maintenance when i open it 40 sec to start... So there lolUninstall fb app then u can login with fb