If you are ill, pause your training for the time being. Only go back to to training when you feel completely recovered. If you were severely sick with a fever or for more than a few days, you should rest for an additional week and start with light activities like walking or low intensity cycling.
When you go back to training, either start with the deload week, if you are in that part of your meso cycle. If not, use the wellbeing slider to reduce training intensity by sliding it all the way down. This will ensure a safe and easy re-entry into your training routine.
