2x Farmer error: ...dOns/Farmer/detectors/Reputation/RegularFactions.lua:66: Usage: local isMajorFaction = C_Reputation.IsMajorFaction(factionID)
[string "@Farmer/core/Events.lua"]:29: in function <Farmer/core/Events.lua:25>
[string "=[C]"]: in function pcall' [string "@Farmer/utils/Utils.lua"]:123: in function <Farmer/utils/Utils.lua:122> [string "@Farmer/classes/CallbackHandler.lua"]:22: in function __callCallbacks'
[string "@Farmer/classes/CallbackHandler.lua"]:48: in function `call'
[string "@Farmer/core/Events.lua"]:10: in function <Farmer/core/Events.lua:9>

This issue is caused by another addon interfering with Farmer by collapsing headers in the reputation pane while Farmer is reading the reputations. In the developer branch this is already being detectted including an informational message.