I was in my promotion and im not anymore

i was in my promotion then i won my first game and then it gave me a win and a lost but i didnt care i was thinking it was just bug then i went to sleep.I came back tomorrow it were a new update then new update of the new champion Kled and then I went to see if it was solved but it wasnt solved it just all dessapeared and i wasnt even in my promotion i was with 90lp or 90 point im am so mad that it was gone i hope that lol solved it my promoting me