1) Try to delete these folders: editor_test and editor_dump in C:\Program Files (x86)\MTA San Andreas\server\mods\deathmatch\resources (After this, do a windows search to make sure you removed them) 2) If that didn't work, try to get a clean updated editor (backup your maps!): Go to C:\Program Files (x86)\MTA San Andreas\server\mods\deathmatch\resources (or where your mta server is installed) Remove all folders and/or zip files that start with "editor" ( editor, editor_main, editor_gui, editor_test, editor_dump ) and "race". Download this, it's the latest revision from mta resources. Unpack the editor folders (race + editor, editor_main, editor_gui) into your "resources" folder Fixed? Edit: added race update