One Quick workaround to make it play is "running" the game from RPGMAKER MZ itself.
Simply make a new project and copy it 1kb file name: "game.rmmzproject" into this game folder and open it from RPG MAKER MZ (no images/maps will show but it is ok) and simply CLick run.
Attached a dummy "game.rmmzproject" file. (Note need to have RPGMAKER MZ from steam or other sites)