I cannot load half of my planes.

[KSPenjoyer123]

A while ago i made a post (Hello, i need help, because literaly half of my planes arent loading in the SPH. I had a mod named "Airplane Plus", but i had to reinstall the game, the mod dissapeared, i installed it agin (with the same mod file as the previous one) and the planes are still not loading. Please help me i had like 30 planes and i put so much work in them.), but because no one responded to it i decided to create another post, this time asking for help finding a mod wich i have had forgotten about, it had something to do with refunding, but not money refunding, just when you right-clicked a part it displayed 2 options and one was about refunding or smth, i dont remember the second option. I think that it was a mod required by another mod or ckan, please help.