I found where is the problem. I accidentaly export level 2 scene to player scene and player scene to level 2 scene. To fix that, right click on the scene, open in external program and find and delete the PackedScene.
I found where is the problem. I accidentaly export level 2 scene to player scene and player scene to level 2 scene. To fix that, right click on the scene, open in external program and find and delete the PackedScene.