A specific map crashes the engine when clicked to be opened

I was editing the map’s blueprint for spawning enemies,time limit and more just in the blueprint, and set it as default map, following day it crashed the editor when launching i decided to move the map out of the project and the editor launched successfully and works but the map still isn’t functional,and i need it very much (i do not have source control)
i dont know what to do i think the problem comes from the umap.file,i also cant find rangefinder anywhere fr some reason.HELLLLLLLPPPPPPPPPPP!!!