u/Nightwish360

I'm helping a friend set up stremio. Through the website it works to login, but when he tries to log in from his Samsung Android or his tablet he gets an authenitication error of "wrong passphrase". I tried logging in with his account on my android and had no problem. But for some reason he cannot get on. Has anyone had this issue or found a resolution? I read online that downloading an older verison might do the trick. His tablet and phone were updated this morning and mine hasn't. But I'm not sure where to go to find an older version of Stremio to try on his phone/tablet. Thanks!