Sometimes starting over with a reset is the only option.
I hate it when stuff like this happens. I remember when I was playing Rogue Galaxy and I wound up getting stuck under the desert. I hadn’t saved recently and I was not in the mood to lose all the stuff I had recently acquired. Took me ten minutes of running around and jumping into various land elevations for the game to finally spit me out above ground.
I was fortunate that time, but there have been countless incidents with numerous games over the years where I wasn’t so lucky.