Cant use the sprite editor for a tilemap

I made a tilemap that was working fine but after closing and reopening unity the tilemap was all messed up and everything that used it looks different. It kinda looks like the size for each tile has changed but I cant check because when I try to see the tilemap in the inspector I don’t see any area for the sprite editor.

Ive attached images below to show what I mean.

I am having trouble with the tilemap called “cloud test”