Lua Error

[jhessin]

This error pops up randomly.

...ns\TrackMaster_Objectives\TrackMaster_Objectives.lua:180: attempt to call method 'ShouldCollectReward' (a nil value)
stack trace:
...ns\TrackMaster_Objectives\TrackMaster_Objectives.lua:180: in function 'GetUnitRewards'
...ns\TrackMaster_Objectives\TrackMaster_Objectives.lua:234: in function <...ns\TrackMaster_Objectives\TrackMaster_Objectives.lua:218>