Cant get an NPC replacement mod to work

[downyscientist]

I downloaded the (CP) EddieM Replaces Sebastian (Spouse Patio Fix)-15319-1-0-5-1682545763.rar mod of of nexus, it changes sebastians character sprite. i downloaded all recent versions of the content patcher and other supporting mods required for it to run and i still do not understand how to get it to work as i am new to modding. can anyone help me solve this? the mod required the ultimate villager manager mod, Content patcher and SMAPI and i have all of these installed and working but the mod still wont work in game. This is the link to the mod: https://www.nexusmods.com/stardewvalley/mods/15319. I know i need to put it in the .xnb file but everytime i do the game crashes and wont run