@BillFlowerpot I don't know whether you only need to use one of these commands, or both, but try one at a time and see what happens. Click on the sim and select:
NRaas > MC > Intermediate > Moodlets > Remove Moodlet > Singed
NRaas > MC > Basic > Outfit > [pick another outfit]
You need the MC Cheats add-on for the first command.