Client displays incorrect amount of IP

I don't know if this happens to anyone else, but I went to go buy a rune that costs 2050 IP and my client displayed that I had 2166 IP. The store said I didn't have enough IP for the rune so I went to check and see if I could buy a 1025 IP rune and I could, then I checked the balance my IP would be at if I purchased the rune and I would have been left with 1023 IP. So I did some math, 1025+1023= 2048 IP. But my client displayed that I had 2166 IP when I really only had 2048. I earned enough IP to get the desired rune and the client said I would be left with 74 IP but my client currently displays I have 192 IP which is 118 IP off of what I actually have. I have restarted the client and nothing has changed, also played a league game and still the IP reads the incorrect amount. Thank you for taking the time to read this and I hope someone can offer a solution.