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When an Italian Player sell things on the Auction House, for each thing, Auctionator write in the chat:

[thing] Acquistato a [money]

but "Acquistato a" in Italian mean "Purchased for", but the player is selling and not buying things.
the correct version of that sentence is " messo all'asta per ".
I already changed my itIT.lua file.

I've updated the translation, it will go out in the next release. Translations are kept track of on Curseforge, which (providing you have a curseforge account) you can edit.

https://www.curseforge.com/wow/addons/auctionator/localization/languages/95/phrases#293470