Expected Behavior

Deleted all addon files & settings. Downloaded the most recent version of vendorer - issue still persists. Please be advised that no other addons have a merchant frame related option enabled, and that there were no issues between addons prior to the Blizzard patch causing this issue.

Actual Behavior

Experiencing the same issue as "Error after 9.02 Blizz Update #19"

Steps to Reproduce the Problem

Happens simply by having the addon enabled.

Error message:

44x !Vendorer\core.lua:1868: Usage: GetItemQualityColor(index)
[string "=[C]"]: in function GetItemQualityColor' [string "@!Vendorer\core.lua"]:1868: in function UpdateMerchantInfo'
[string "@!Vendorer\core.lua"]:1792: in function <!Vendorer\core.lua:1792>
[string "=[C]"]: ?
[string "=[C]"]: ?
[string "@Altoholic\Altoholic-9.0.5-019.lua"]:261: in function MerchantFrame_UpdateMerchantInfo' [string "@FrameXML\MerchantFrame.lua"]:140: in function <FrameXML\MerchantFrame.lua:133> [string "=[C]"]: ? [string "=[C]"]: in function MerchantFrame_Update'
[string "@FrameXML\MerchantFrame.lua"]:102: in function <FrameXML\MerchantFrame.lua:92>
[string "=[C]"]: in function Show' [string "@FrameXML\UIParent.lua"]:2915: in function SetUIPanel'
[string "@FrameXML\UIParent.lua"]:2760: in function ShowUIPanel' [string "@FrameXML\UIParent.lua"]:2628: in function <FrameXML\UIParent.lua:2624> [string "=[C]"]: in function SetAttribute'
[string "@FrameXML\UIParent.lua"]:3473: in function <FrameXML\UIParent.lua:3452>
[string "=[C]"]: in function `ShowUIPanel'
[string "@FrameXML\MerchantFrame.lua"]:36: in function <FrameXML\MerchantFrame.lua:28>

Locals:
(*temporary) = nil