I did a rollback using a backup to save my server.
I see in log that is something with thermal of BuildCraft. But I have no idea what happened.
This is the key
Name: thermalexpansion.transport.ConduitLiquid // thermalexpansion.transport.tileentity.TileConduitLiquid
Block type: ID #0
Block data value: Unknown? (Got -1)
That means there is a liquiduct that has null data in it. Meaning something caused the liquid in it to be stripped of its NBT data and set to null. The only way you can fix this is by zapping the source of the liquid. If you wish i might be able to fix it for you. All i require is you PM me and we can go from there