im very confused riot, and you need to explain

so yesterday when i was playing league with my friend my entire computer froze i heard nothing and i couldnt do anything but watch my frozen league game, i reset my computer and booted up league launcher again only to see that i cant log in due to a ,,server dissconection" and to check the server status, after checking the EUNE status i saw that everything was ok with the server. But i couldnt log in i reset my computer again adn ran league as administrator, only to get the same message again, oh and by the way I GOT A LEAVE BUSTER BECAUSE THATS FAIR, and today im going out of town to play with my cousin and i have leave buster!!! so i guess thats out of the question.