4.23 project crashing 4.23.1

I would pay money for someone to fix this… Ugh. Every time I attempt to build the lighting in this level it gives me this crash about base pawn class. I then have to restart ue4, duplicate the level (as trying to open it at that point just crashes again), then delete the original level, open the duplicate to get back into the level. BUT cant do anything as it simply crashes if I build lighting.