• Explain what you were doing when the error occured:
  staggerPause.lua UNIT_SPELLCAST_SUCCEEDED event handler is outdated

• Do you have an error log? If so, put it here:

• What version of BrewmasterTools are you using?
  newest

• When was the last version which did not have this issue?

I think this one can be closed. Was fixed in 0.3.2 and i tested it on my monk.