Trial of sekhemas 4th floor problem

Once I reach 4th floor of sekhemas I can no longer enter.

Did the 3 floors without any problems about 6 hours ago and when I tried to enter 4th floor I got thrown out of game with error "The terrain generator for the client is out of sync with the server. Please create a new instance and try again".

Tried just now to enter the trial again and same error pops.

Same issue, stuck on the outside of the trial after 3rd floor. whenever I try to enter, the mentioned message pops in during loading screen and then it displays character select screen. Tried many times, always te same.