We cannot help you if you do not follow #1052330262492631071 including sending your log files after it crashes.
barren dust
We cannot help you if you do not follow #1052330262492631071 including sending your log files after it crashes.
Do you have Fargo's loot bonus by any chance?
dry plume
i do
barren dust
Killing skeletron with Fargo's loot bonus will brick your world. You will need to load a backup from before skeletron or make a new world