When we use product search of personal shop, we can input part of the item name and let the system show a list of full item names. I think there must be some kind of dictionary for item names used in this conversion process. This dictionary may be saved in the local save data of the game. Probably it depends on the platforms, at least PS4 and PS Vita have the dictionary in the local save data. When I re-install PSO2 in these platforms, the dictionary forget most of the things If I don't restore the local save data.
So, maybe deleting the save data of Xbox One can cause a similar problem of resetting the dictionary.