Master Merchant on load Lua error

[mattymaats]

Hi guys,

I have an issue with MM and I'm not sure where to post it, basically every time I load up the game this error displays on my screen.

user:/AddOns/MasterMerchant/MasterMerchant.lua:2757: table index is nil
stack traceback:
user:/AddOns/MasterMerchant/MasterMerchant.lua:2757: in function 'MasterMerchant:InitPurchaseHistory'
user:/AddOns/MasterMerchant/MasterMerchant.lua:2417: in function 'MasterMerchant:Initialize'
user:/AddOns/MasterMerchant/MasterMerchant.lua:3016: in function 'OnAddOnLoaded'

I have tried to uninstall the mod and do a fresh install and the same issue occurs! So I'm a bit lost at what the problem as I totally deleted my old MM files and reinstalled it manually and through minion. If anyone has any ideas of what the issue is or something else I can try that would be great as I'm actually really stuck without MM

Edit - Tried to install Shissu LUA memory addon as suggested by someone, didn't help.