In-game shop bugged

I was playing as Soraka on Summoner's Rift Normal (Draft) and I encountered a very annoying bug where the shop was all messed up. The game started out just fine and I was able to purchase items normally from the shop, but later in the game, there was a discrepancy between my Gold and the items in the shop. The shop didn't register the fact that I purchased CDR Boots and the item was available for sale even after purchasing it, with no checkmark displayed on the item. HOWEVER, this was the least of my problems! The big problem was that I was unable to purchase Ardent Censer and Redemption due to the fact that the displayed price was the full price and the game did NOT register the items I already bought whilst trying to build towards the final item.

Riot, fix your game. And please, for the love of God, just delete EUNE altogether. The levels of toxicity are off the charts. Bye