Coming back to the game after a two year break, I updated all add ons with Minion, only to find that I could no longer get either a list of my guild sales, or suggested prices for items I wished to sell. I then went back and removed the TamrielTraderCenter and the MasterMerchant folders from my Addons, and replaced them with the latest versions via Minion. When I next loaded the game, I got the error message "The item lookup table is missing. You need to run client.exe in Documents/Elder Scrolls online live/Addons/TamrielTradeCenter/client". I have run cient.exe several times to no avail. can anyone help, since without those Addons, any kind of commercial activity is hopeless!
My Addons folder also contains Folders MMOOData to MM15Data, marked as "Out of the date"; I have tried loading the game with them selected and with them unselected, but it makes no difference.
I am playing the latest version of ESO on a Mac running OS High Sierra.