This means our focus keyword does not present in any subheadings, Please follow the beneath points to rectify
- Find the focus keyword in the page analysis tab
- Go to general tab, check whether the sub heading matches the keyword
- If it does not matches, create a subheading name which matches the keyword name
- Then check whether the error sustains same.
- If it sustains logout and login the wordpress, you above headed point will be rectified.