[harvey smith]

my car was running fine just got it a month ago stop at the store got back in an there was not power but head light would come on found out the fuse box under the hood was mess up replace it all work but the starter want ingate to start want could it be now thank you harvey smith

 

[ImperialCrown]

Welcome to Allpar. What model? More details of what 'messed up' please.
The underhood fuse box is more than just a fuse box. It is a TIPM (totally integrated power module) and a smart gateway for the other modules in the vehicle and is VIN-specific. You can't just swap one in from another car.
It can store fault codes. Any dash warning lights on?
You may have to repair your old one or seek dealership help on this.