Current questions and answers regarding the map editor.

Hello! The other day, I decided to start learning the editor by creating a map. After a couple of hours of continuous work, I saved my masterpiece and decided to take a break. The next day, when I opened my creation, I saw this: "Can't load (drive D/folder/folder/GMM5/Maps/map) file (The file may be corrupted, file version unsupported or you are trying to load the map from outside the [Game installation folder]/Maps folder)." The file size is 106 KB, and it doesn't appear in the game (on the 2nd day). In the Editor/H5MMods/[map name] folder, there are no files. What should I do? Please help!