When I start my game it appears that it is in oven and it doesn't loads further what it means and what to do?

You are in jail. Did you spoof?

Consider removing your device from the oven

It happens to me when i login to my alternate account!! However it works normally when i restart the game! It happens every time when i change my account! But got used to it eventually! If u r running low on space try clening up! And then restart!