Bessemer

I'm running a Tekkit server and I just installed the factions plugin. The problem is how I should configure the Forester and Buildcrafts config so that they actually run while under the factions protection. Right now I have them running with it sending null events which spams the console with: 11:57:21 [sEVERE] Could not pass event org.bukkit.event.block.BlockBreakEvent to .... So is there another way to make the mods run correctly with out spamming my console?