I have the same issue on multiple android devices, tried deleting cache, deleting files, uninstalling and reinstalling the game, rebooting the device etc. My Plarium Play on PC works fine though, seems to be just some android and iphones having the issue right now?
My phones error is
ViewModel [ BundleLoadingException "c":0 "b:NewsBannerSmall_Pack 11 ]
[v1.15.1 umMYPLAYERIDETC s12 en-US 8-5.20 12:24:15 UTC ]
Auto response from support said update to 1.15.2 to fix login issues, it won't ask you to update, you manually have to go to the play store and run the update, this literally was 5 minutes after a fresh install, so either the patch JUST hit, or it needs to be run even after a fresh install.