ECG app not showing up on Fenix 8.

I completed the ECD set up last month when i got my new Fenix 8 and took two readings.  Now am unable to find ECG app anywhere on phone.  I can still see my two reading from last month on Garmin Connect.  How can I take a new reading?  Also, in Garmin Connect, when i go to my device Activities and Apps, i can’t click on any menu items except Activities.  None of the other menu items (Map, Clocks, Saved, Phone, etc) respond.  

Thank you!