Lol not working on mac

It's been 3 days when ever I open my lol launcher a pop up msg comes saying 'unspecified error occurred.please check the logs for more info ' n I press ok n it gone I can't play lol the last time I played was on Friday I guess I was in game then suddenly my screen froze I w8 a while but all I could do is move my curser so I had to force shutdown my mac n turn it on again , after turning on I tried to reconnect but that pop up msg I was talking earlier came I tried several time to open it I couldn't . After 10 mins I finally got my login screen but after typing my password n pressing enter it showed a note saying couldn't connect to server n asked me to click on a link I clicked all 3 still not working so I thought it's some temporary problem but now it's been 3 days already n still I get that pop up msg saying check u logs wth is this I don't want to re download the whole game which Dl in 5 or 6 Kbps. N taker forever my internet is fast it not my net from when m in game I don't lag,some times I face problems like sudden fps drop or bug splash that's all but pls riot or any one who know how to fix this pls help me Tq