May 20, 2021, 15:2705/20/21
Assuming you're on the right map (i.e., your haven looks the way it should), your mates may have Whirlpooled and your old BH may have disbanded (possibly due to inactivity). Four months is a long time in a game like this.
It's a bit hard for us to guess without any data on where you play, what BH you were in, who your mates were,... and even with that, I don't think we can do more than you can.
I hope that the Support can help you more.