End City failed to generate

On Singleplayer there is a tower and a boat but on Multiplayer nothing generated on that location and other EndCity i found was unfinished by generator. I play with my friends on private server and i got there before anyone else so there is no way that someone just came there and destroyed every block possible from City.

Seed: -7324437270477144563

Coordinates -505 89 1608 

1st picture is from singleplayer world

2nd picture is from server