I'm keep getting this error, please help.

I don't know if this can help but 1 hour ago I got a bug that f*cked up my map : I couldn't edit anything and when I re-opened the editor it shown a blank unamed.map map. The map file was 1KB.
I also had a loading error but I don't remember which file.
I solved it by taking one of the autosaves in steamapps\common\Call of Duty Black Ops III\radiant\autosave_backup and placed it in steamapps\common\Call of Duty Black Ops III\map_source\zm.