Security Headers not showing 

My hosting company allows you to set security headers (20i). I have them set and they are sowing as being active on their end and also here

https://www.serpworx.com/check-security-headers/?url=https%3A%2F%2Fsewhandydesigns.com%2F

Any reason why I am getting an F if they are active? FYI I am not a developer just a web designer so not OVERLY technical. Thanks i. advance. 