Issue can't be fixed by yourself, see below related threads, the other that fixed it probably had a other issue
https://forum.plutonium.pw/topic/35120/crash-code-0xc0000005-0x0054162c
https://forum.plutonium.pw/topic/35549/attempted-read-of-nullclassptr-in-plutonium-bootstrapper-win32
https://forum.plutonium.pw/topic/34639/crashing-when-entering-to-a-server
all have the same error, currently no fix and you have to wait