MasterMerchant errors due to other Addons update

[Jysoul]

MasterMerchant initialization during character load produces UI Error: 63D314E2 and no longer works.
user:/AddOns/MasterMerchant/MasterMerchant_UI.lua:970: operator .. is not supported for string .. nil
stack traceback:
user:/AddOns/MasterMerchant/MasterMerchant_UI.lua:970: in function 'MMScrollList:SetupReportsRow'
user:/AddOns/MasterMerchant/MasterMerchant_UI.lua:1049: in function 'setupCallback'
/EsoUI/Libraries/ZO_Templates/ScrollTemplates.lua:2451: in function 'ZO_ScrollList_UpdateScroll'
/EsoUI/Libraries/ZO_Templates/ScrollTemplates.lua:2207: in function 'ZO_ScrollList_Commit'
(tail call): ?
(tail call): ?
/EsoUI/Libraries/ZO_SortFilterList/ZO_SortFilterList.lua:154: in function 'ZO_SortFilterList:CommitScrollList'
/EsoUI/Libraries/ZO_SortFilterList/ZO_SortFilterList.lua:114: in function 'ZO_SortFilterList:RefreshSort'
/EsoUI/Libraries/ZO_SortFilterList/ZO_SortFilterList.lua:204: in function 'ZO_SortFilterList:OnSortHeaderClicked'
/EsoUI/Libraries/ZO_SortFilterList/ZO_SortFilterList.lua:40: in function 'callback'
/EsoUI/Libraries/Utility/ZO_CallbackObject.lua:132: in function 'ZO_CallbackObjectMixin:FireCallbacks'
/EsoUI/Libraries/ZO_SortHeaderGroup/ZO_SortHeaderGroup.lua:171: in function 'ZO_SortHeaderGroup:OnHeaderClicked'
/EsoUI/Libraries/ZO_SortHeaderGroup/ZO_SortHeaderGroup.lua:191: in function 'ZO_SortHeaderGroup:SelectHeaderByKey'
user:/AddOns/MasterMerchant/MasterMerchant_UI.lua:1073: in function 'MMScrollList:New'
user:/AddOns/MasterMerchant/MasterMerchant_UI.lua:3921: in function 'MasterMerchant:SetupScrollLists'
user:/AddOns/MasterMerchant/MasterMerchant.lua:3951: in function 'MasterMerchant:InitScrollLists'
user:/AddOns/MasterMerchant/MasterMerchant.lua:3924: in function 'Queue'
user:/AddOns/MasterMerchant/Libs/LibExecutionQueue/LibExecutionQueue.lua:35: in function 'lib:Next'
user:/AddOns/MasterMerchant/Libs/LibExecutionQueue/LibExecutionQueue.lua:36: in function 'func'
/EsoUI/Libraries/Globals/globalapi.lua:260: in function '(anonymous)'

The last four Addons updated that introduced this error from 19th June (Australia time so 18th June US) were:
CraftStore Necrom V2.86
LibCharacterKnowledge V1.4.8
SkyShards V10.52
ESO Master Recipe List V1.56.73