I am having this mount and blade warband battle sizer mod?

I bought this legion 5 laptops and now my laptop can handle pretty much everything. I play this game called mount and blade from steam and download a mod called battle sizer to size up to my battle size as much as I possibly can. Now I’m having this error whenever I try to download my battle sizer mod which I’ll attach to this project. Anyone who plays games on steam or knows anything about the mount and blade warband. Help me out!