Mobula 7 hd trying to fly sideways and being buggy

My Happymodel Mobula 7hd has this very weird problem that causes it to try and flip over or zoom across the floor when you arm. When you arm, the quad spins up two motors more, like it’s trying to get the quad to fly upside-down. I’ve tried changing the roll degrees in Betaflight, but nothing happens. Also, the model of the quad in the setup tab is totally off, so I tried to change it so the quad was flat, but the real quad just kept doing it. [Yes,I have pressed save and reboot!]. I just have no idea what the problem is. Thanks In advance for your help.

Calibrate the accelerometer/gyro