Can't make add ons work since os x el capitan

[Wodracks]

Hi,

Since I have installed OS X El Capitan, most of the add ons I use are bugged.

I tried :
Delete the add ons + the saved variables folders and reinstall the add ons. --> didn't work.
Delete the entire game + the elderscrollsonline folder in ~/Documents. --> didn't work.

Planning to do a clean install of OS X, I did it :
- Delete all what was on my hard drive.
- Reinstall OS X
- Applying patches of OS X
- Redownload the entire game and the add ons.
---> didn't work either

Here is the report log that happens every time I mouseover an item in my inventory using only Master merchant.

user:/AddOns/MasterMerchant/MasterMerchant.lua:67: operator < is not supported for nil < number
stack traceback:
	user:/AddOns/MasterMerchant/MasterMerchant.lua:67: in function 'MasterMerchant:toolTipStats'
	(tail call): ?
	user:/AddOns/MasterMerchant/MasterMerchant.lua:232: in function 'MasterMerchant:itemPriceTip'
	user:/AddOns/MasterMerchant/MasterMerchant_UI.lua:785: in function 'MasterMerchant:addStatsAndGraph'
	user:/AddOns/MasterMerchant/MasterMerchant_UI.lua:1160: in function 'MasterMerchant:addStatsItemTooltip'
	user:/AddOns/MasterMerchant/MasterMerchant.lua:2544: in function '(anonymous)'

I tested this add on on a PC and it work perfect. On my mac, it doesn't, like many other add ons.

Can anyone help me ?