Yeah Java was my first thought. So I ran an update and it continued. Uninstalled and then put on the most current version. 1.7.21 I believe is the number not sure off top of my head. We have restarted and re-seeded server multiple times but others are not having the issue. My personal belief is that the climb in number of mods is going to cause this for those without that much RAM. Considering most windows will take 1.5gb alone to run.