If you’re playing BingoPlus on mobile, stick to the official site to log in...

https://sierra-wiki.win/index.php/BingoPlus_Login_Problems_After_Reinstall_%E2%80%93_What_Could_Cause_It%3F

If you’re playing BingoPlus on mobile, stick to the official site to log in securely—look for HTTPS, use a strong password, and enable 2FA if you can