Problem "Unable to find spawn biome"

After loading up the 14th age in mystcraft, I now get a message saying "Unable to find spawn biome" in the console. The server crashes after that and Im still unable to load the 14th mystcraft world. This is on the Ultimate pack (recommended), and Im new to these server stuff, so bear with me if I don't know how to do some basic things. This is a internet server, 2 people max, hosted on a non dedicated machine. Please help!