[1v1] "Missing Map maps\ (name of map)"

[stu]

If the file isn't in the map folder (as I suggested), there sometimes are two file types for one map (idk the extension name). try using CTRL-F to search in the folder for the map. Example "Search: am_grass"

If you find a file with am_grass in it (or whatever the map is called) delete that. If you can't find the file then I really don't know :p