Hello, I'm having trouble with Nether Portals on the Semi-Vanilla server. First I tried creating my own Nether Portal, but it kept leading me to a locked, claimed room, so I couldn't access the Nether. I tried rebuilding my portal far away, but it wasn't enough and it kept taking me to the claimed room. So I went for the "Official Nether Portal" and now I'm stuck in a closed-off claimed room, with gates right in front of the portal. I can't even step out of the obsidian, and it won't teleport me back. I can't use any commands since those are unavailable while standing within the portal. All I can do is jump up and down to no avail, or stand there waiting for a slow, nauseating death. Help?