Not to sure where to put this, but i came across the white and at that point i got disconnected, i am no longer able to reconnect, i had waited until the next server restart and still i cant get in
i got the same issue. a wight fortress does the same thing. after going there, a staff members has to move you to spawn.
So this is the issue with those fortresses .. if they are not cleared properly and someone just uses for example /thru or /fly to get to the top it breaks the fortress and causes most people to crash if you get close to said fortress that is until a server restart. I do not believe there is a fix for that happening. Did you already get TP'd to spawn?
i did not get tp to spawn to my knowledge, i was not even able to get close to it, max render distance