Robots.txt issue for international websites

[JinnatUlHasan]

In Google.co.uk, our US based (abcd.com) is showing:

A description for this result is not available because of this site's robots.txt – learn more

But UK website (uk.abcd.com) is working properly. We would like to disappear .com result totally, if possible. How to fix it?

Thanks in advance.

[KeriMorgret]

Is it showing that for every page, or only some pages? If so, which types of pages? What's the contents of your robots.txt file for the US site?

[JinnatUlHasan]

My main problem is in the homepage. Both host similar type of products and brands.

You may check the screenshot. Sorry, I had to blanked out the text.

Thanks in advance.

8BwQKcv

[KeriMorgret]

Can you share any information about your robots.txt?