Hey Riot My Mac League Pbe Client Won't Open Or Load

So i tried to login pbe account , and i wanna try the nunu rework . When i logged in i saw my account it said i'm online but , nothing load nothing the play button just won't work so is others . After that i reset my mac and then rep-open it and it still won't load the next day sometimes it work sometimes it don't .i even tried to uninstall and reinstall-led but nothing work hope someone can help me