Vault vanished after loggin in the next day

Game mode: [Online | multiplayer]
Problem: Bug
Region: [EU official server 1117 pvp]

[Free text]

Dear support,

i just logged in right now to find out that my vault completly vanished.
Can you please tell how this can happen? Need help please.

Steps on how to reproduce issue:

  1. create a vault
  2. place it.
  3. log out
  4. log back in the next day