While i was buying stuff from the player shop after a Yamato UQ i stopped to take a break. When i came back and started searching for items again, just to realize that the Product Search Results shows nothing. Whatever i try to find, shows absolute zero results. What's going on? Did i search to fast for items and the game auto ban me from the player shop?

If you are aware of the quick search, then that's perhaps the reason.

For the sake of server performance, they will disable personal shop search temporarily, if someone used refresh for a certain number of times with in a certain period. From what I heard, it won't take many hours till the lockout is lifted. So just wait a while

Thanks for the info. Might just wait till later today and try again.