The Cruncher is spitting out some invalid lineups for Draftkings. DK requires you to field hitters from at least 3 different teams and it's using some two team only stacks.
Yeah, we originally had this problem sovled in other sports by limiting the number of players from any 1 team to 4, this effectively made you use 3 teams. This is a new issue that has popped up due to the different rules for DK. I will address this soon, until then you will just have to manually discard those lineups.