Loading error

26/10/17 19:45
keep getting message when starting app on phone.
Error. invalid credentials. please check your login details and try again.
i've changed nothing on phone and wouldnt know how to change any login infomation.
i've deleted the app and restarted my phone, ive factory reset my phone..
the only way i can play is via my laptop from facebook
is there any way to actually check my login info or has anyone had this problem before?
06/11/17 20:06
I have the same problem with my phone