Client crash after login in nether.(Solved but crashes when using portal)

[dulios]

Greetings

I was near my nether base and my client crashed, and keeps crashing about 2 seconds after login.
Wanted to ask if my spawn can be set to default.

I'm using vanilla minecraft.

Thanks

Edit:
Managed to after many tries to teleport before client crashed. The client still crashes when using the nether portal, but at least I can reconnect without it crashing.