I'm updating my modpack and was checking if everything on the map is working.

I teleported to the block and there is only a normal wheat farm. It seems to crash when a crop gets harvested by the mfr harvester.

http://pastebin.com/5QzSdmkx

after a few more tests it seems that there is a problem with my hungeroverhaul food json. If there is no json file, it works :)

here is a link of my food.json
http://pastebin.com/npwqX1Au

Fixed by eae6ce6

Just FYI, the problem with your json is that you commented out the contents of the objects in foodsBlacklist/dropsBlacklist/harvestBlacklist rather than the objects themselves, so you were adding a blank objects to the blacklists.

Compare:

"someKey": [
  {
    // empty object
  }
]

to:

"someKey": [
  // empty list
]