Help with testing rules on FM Editor

Hi, im trying to do a relegation/promotion system with the US leagues. I got everything set up but when i try to convert to adcanced rules or testing the rules it it gives me an Error as you can see on the picture. Even tough i got the right amount of teams in the league it says "found 96" for some reason. 
 

If you've not already, I recommend checking out https://www.youtube.com/watch?v=1-IVBFwq8is&list=PLBRrkE9GGBxETel7pB2bVnuNdDhC_j--h 

He has a lot of good resources available and I learnt most of my editor stuff through these