Hi, today i have done fight on Ranked Battle but when i chellenge Akira lv53 Rank 38 the game give a black screen, so i have to refresh, i have think whas my browser so before done again i use the mini client, enter on Ranked Battle and challenge him, even the mini client as be blocked and can't do anything. All Fight before and after him worked perfect ( even if i have lost :( ) so i think he can found a cheat or exploit some bug, i ask him explain this situation but never reply.
Is possible ban him to prevent done again to other?
Thanks for reply
Have a nice day


Sorry for my english