Loosing Poro King = I lose in my RANKED series

2 ranked game ago i got into my series in to become bronze one, after that game i played a Poro King game and lost, i took some time off of the game (3 hours) came back and played a rank game and won it, i checked my profile and it said i had a lose in my series by all my rank game have been WINS! besides a lose in a Poro King game...... Riot pls fix this because if i loose the next game i dont get promoted but i never lost in the first place