First you need to check if the parameter turned red was turned on before in your Cobiro Dashboard. To activate the parameter, you need to go to the "Automate" section and turn on the function as shown below. By doing so, the red signal should be gone when you do the Health Check next time. If the parameter is already turned on and you still see a red flag, this might indicate that the specific parameter is not performing too well. To improve the performance of those parameters you need to manually make changes in your AdWords account.