We have just updated the theme with sidebar issue fixes. Please update your theme to use the sidebar on the blog page. and for Front Page, actually, it has no sidebar available on default because of fullwidth homepage sections. To add sidebar beside the latest blog. You need to customize your theme by using a child theme. to generate child theme please use child theme generator plugin like https://wordpress.org/plugins/child-theme-generator/ then activate your child theme. Now you are able to make changes in child theme as per your need.
Please add the following code to your child themes functions.php to get sidebar beside your latest blog section.
Hope this helps you.
Best Regards !!