tried to start bot game, and was given black screen

so i tried to start just a regular bot game on SR, when i clicked play the greater lol window that has all the different screens turned black, the outside edge with the lol logo, the notifications, chat pannel, friends list were all still there, but nothing changed... after a lil while, under 5 mins, i tried to close browser, i received a leaving game notification but was able to close, when i re-opened it told me something i think about leaving a game, and then i made this report...... i might be fuzzy about the end result, i didnt take notes at the end and i might have gotten something a lil wrong