LaMotte ColorQ pro7 tester help

Tested water the next day with LaMotte ColorQ pro7 tester and getting way different results. Confused. Need HELP

Free Chlorine 5.10ppm, Total Chlorine 5.10ppm, PH 7.9, Alkalinity 141ppm, Calcium Hardness 352ppm, Cyanuric Acid 98ppm