Does the game close or you can't move? If you are in the overworld Use this command
>Summon DungeonEscape_C
will give you the ladder item and using it will take you to the beginning regardless of the place, if that doesn't work let me know and I will give you another command to spawn an enemy, you will lose and will lead to startup, the commands are executed by pressing the key above tab, it works in 90% of the cases