I was getting the 0 TPS as well when I upgraded ER to 0.4.5.48 when trying to fix my server crashes. Would go to 0 as soon as I switched on the OpenComputer setup. Had to forcefully shut down the server. So I'm back to the old version of ER that comes with Revelation 1.8.0. My original crashes seemed to happen straight away if I have 3 or more turbines, which points to what XyFreak mentioned about turbines being the cause, 1 or 2 turbines seems to run fine, although my server did crash again with the same issue after about 4 days, so I've turned off the OpenComputer setup and left the turb