Cannot Join MineOS server

As said above i cannot connect to my server although it was working a few days ago then midday just stopped. It is running on a freenas box with mineos with multiple mods using forge 36.1.0 when the server is started up on the client side attempting to connect there is three Question marks where the player count would normally go. There is no errors in the logs on client side although on the server it does display this error “[Netty Server IO #4/INFO] [codechicken.lib.config.ConfigSyncManager/]: Skipping config sync, No mods have registered a syncable config.”. Im guessing that there is something wrong with the code chicken Lib although there is a few mods that rely on this and i do not want to delete it.

Not sure about all that, but does the client match the server version?