0007f477 is the Base ID. If you read the error it say's wrong Reference ID which you need to resurrect Wadsworth. The reference ID is 0008F6AE so type these commands in console (in order):
prid 0008f6ae
resurrect
moveto playerP.S. I had to kill Wadsworth to correctly install the Megaton House and Theme Overhaul 2-8-7 PATCH by JoshQuake & Megaton House and Theme Overhaul V2-8-0 RC by KrazyKommy mods. Thank you apaosha and RozenDoll for your help!