BUGG RIOTTTT HELPPP ME PLZ

I was going in training mode to pratice my Warwick and the loading screen of the game never showed up ... i close my league open it again and still i cant load the map... I spend so much money on this game (we talk about 300 and more $) and i am scare that this game will never end because minion are fighting alone and wont be able to destroy de nexus.... HELP ME PLZ!!!! 2nd time that happend me in two days bot first time in training mode