enlargedjuice

Hello, I have been running a tekkit server for me and my friends for almost a week now and it has been working fine until today. The server starts up fine, but no matter what people cannot connect. It just says "Can't connect to server." I have tried so many solutions and double checked everything, but nothing has helped. My only assumption is that because I updated Java yesterday and now the server is not working. Is there anything I have to do to my servers now that I am on 64-bit java? Thank you for any help.