Crash issue

To put simply i go on to multiplayer and go into a server.
It spawns me into a hub between games.
I go to sky wars which it then spawns me into players base who has a good bit of piston noises emitting for a split second.
Then the game errors then crashes.
What I expected to happen was...:
The game to let me play as usual.
What actually happened was...:
A fatal crashing error.
Steps to Reproduce:
Not really possible.