Can't buy 4800 IP cost champions

https://gyazo.com/8472444f8bea00fcfea943ec9a19fffc https://gyazo.com/80e3e138f901a2dbb09b5612535585e5 https://gyazo.com/229d30e27096af786cb6cc135fd5a508 I was trying to purchase Nautilus but the game isn't registering that I have enough IP for it. Second example to show its not just Nautilus. Third example shows that I can buy 3150 champs.