Youtube video deranked because somebody sent 100+ dislikes?

Hi, I am new to youtube ranking, and I have been trying to rank one youtube video for a week.
I managed to get it on page 1 18th(ish) position on the keywords I targeted.
I use ytrank to check my rank.
Well I checked my video today and it's not even showing up on top 10 pages. (everything was fine 2 days ago)
I went to my video and saw there are 100+ dislikes (that weren't there before)
My video wasn't even getting that massive traffic to have those dislikes in about one-two days,
My…

Youtube video deranked because somebody sent 100+ dislikes?