100 LP Bug

So I just got to 100 lp and it didn't say that i was in a series like it usually does, so I just assumed you had to get over 100 lp to qualify and I just somehow landed 1 off. And when i lost a game it said 83 lp. So i was like ok, I guess i was right then. And then I lost another game.... and then it said you lost your series. And it shows i have 66 lp left, is that right? Or do I have 0? Well whatever.