I just donated and when i type /vault it spawns me here:

This shouldn't be a problem with donations :/ (as far as I know) Have you got a new /vault or the old version of vaults

i think its something to do with a new vault being part of the donation pack, but i already have a better vault than it so id rather either have an upgrade to my current one or just have that perk ignored

...

Ok u need to get the vault first i think

Ask a mod or make a pe saying u want ur vault and say how much u donated

Then when they have done that move ur stuff from ur old vault to new

Btw u cannot buy or upgrade old vaults anymore so u need a new one

I can't tell from looking at it but I'm guessing that if you are being sent to a random bit of land, then the terrain generator in vault world has goofed and your vault is deep under ground. Make a petition at that point and explain what has happened. One of us should get to it shortly!