I delete and re-download, I clear cache.. nothing works. I try to sign in and everytime it treats me like I'm signing up, then tells me my email is used ans I need to sign in, but won't let me go to a sign in screen only "sign in or sign up" ... had this issue for months ans barely go to McDonald's because I'm not going somewhere I can't even access the coupons or my points because I got a new phone and haven't been able to sign in since. Based on reviews I'm not the only one with this issue