League of legends store error occurred

Hello,
This error appears every time I want to buy some points in League of Legends. I have contacted the support of the game but I don’t have an answer from them. Reinstalling the game is not working so I don’t know what to do anymore. Can anyone help me to fix this error please ? Why I cannot access the store of League of Legends and anyone else can ?
Thank you !

Error
We apologize but our store has encountered an error. Please contact us at https://support.riotgames.com/hc/en-us for additional support.
Back
