i want to remove featured image on page

It was an issue (version (1.5.0)) which has been fixed in the latest version, its not available for update however you can manually download it from here https://supernovathemes.com/supernova.zip

To manually update the theme,
1) Activate some other theme.
2) Delete the existing Supernova theme (don’t worry you wont loose settings)
3)Upload and activate the new theme(in zip file).

Thanks!
oh! already i set up and test the ver1.5.1 in my test site.
but in my test site, i do not try about the issue.
sorry!

When did you download it, it was updated yesterday to 1.5.2