Hello, Inesita,
You are editing the Home page wight now, so we can’t check your settings.
Your question is independent of our theme, and relates to Elementor plugin functionality.
Try to add this element https://prnt.sc/mdxLXcwNT5lD inside such columns. Also, the Spacer element will help you to regulate the column height for mobile devices.
If you have any additional questions or concerns, please do not hesitate to reach out to us. Our support team is always available to assist you.
Kind Regards,
8theme team