There seem to be a few people exoeriencing going into the Clappy DLC, being under leveled, and then being under-leveled and unable to fight through to tje next fast travel.
This will also help people who get glitch stuck in places.
Sorry for all the typos, these forums are not kind to my phone.
Do you bave a second controller?
If so, have your “stuck” toon join the game of another toon you have created in any other area then have your “stuck” toon save & quit out.
When you restart the game with your “stuck” toon they should be in the new area.