I've been attempting to make stars, I have a 15x15x2 room that I fill with fire. It has worked 3 times, but now that there's a sizeable pit under the floor I'm getting weird crashes. It seems that if the oxygen sealer unseals while there's fire in the room the server crashes. I was unable to replicate in single player, but it happens consistently on the server.
The server is running out of memory. As it has 6 GB allocated (which is more than enough for a pack with this size and the few players, infinity only needs 4GB) there is a memory leak. As this is a serious thing it has most certainly been fixed already. Please don't rebuild it again until we update. Unfortunately chet and caith are both pretty busy atm, so I don't know when the update will happen.
I might be able to check this as I am temporary back. Also going to be updating 99% of the mods anyway.