Please help as some would not boot after bios update and bios downgrade

I was going to update to the newest bios for the gigabyte z390 designator N7 but failed to do so I downgraded back to n 6 and now I have a error someone please help

My specs on i7 9700 k Vega 64 z390 designator

https://i.imgur.com/1oijtRW.jpg