baud Hi
hat section belongs to the Spotlight block on the homepage.
It looks like the Spotlight is currently configured to display 4 columns (4 module positions). Since only 3 module positions are in use, the fourth column remains empty, leaving the white space on the right and pushing the other three columns to the left.
You can adjust this by going to: Template → Layout Settings → Responsive Layout
Then configure the Spotlight section as shown in the screenshot below:

If you need any assistance with this, feel free to share your Super Administrator account, and I'll be happy to help.
Regards,
Hien