Help, shore power panel has lost power to 1 side

[Rickjnorman]

Nee to me 350 Larson cabrio. (2006). Right side of the shore power panel has lost power connection is good to shore power. Something has tripped. Everything on that side is not working. Does anyone know what the two accessory on the bottom are controlling

 

[Faztbullet]

Most likely a wiring connection on buss bar behind panel...those breakers are spares