day of cramps Workout

Here was the plan
5 rounds
triple angle lunges x5 (so 15 total reps each leg)
15 sit up
10 ice skater lunges each leg
20 scissor kicks
15 squats

On the third round at skaters I couldnt stop cramping (still quite tight from yesterday)
This happened at about 11 minutes.......had to stretch after that and call it quits