The missing pieces

Hey guys.I’d like to report an error that happened to me in the first hour of the game and that prevents me from continuing to play.
In the quest “The missing pieces”, the seller has a problem in his store where I try to open it several times and it closes. After trying to open it several times, when I finally do, he doesn’t allow me to buy the item “Lorath’s Rod”.
I also want to point out that I even created another character, imagining that I might have done something wrong during some initial quest and bugged everything.
Is there any way to solve this?
Thank you in advance for your help.

This issue has been brought up countless times, and the solution always seems to be to sync your computer’s time to your correct time.

Even with the sync, he still made the mistake.
I really don’t know what to do.