Every time I open my account, it doesn't open and says this message

Every time I open my account, it doesn't open and says this message خطأ غير معروف 1000 يرجا التأكد من أن لديك اتصال شبكة مؤقته

I cancelled the game and downloaded it again. It worked, but with a different account. When I logged in to the same account, it refused again. What should I do?