How to solve this issue

You need an a element that links to https://www.freecatphotoapp.com

HI @Jatto !

In order to help you we need to see your codepen if this is a project.

If this is a challenge, we need to see your code and the challenge link.

<a href="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back.">This to freecodecamp.org</a>

I’ve edited your post for readability. When you enter a code block into a forum post, please precede it with a separate line of three backticks and follow it with a separate line of three backticks to make it easier to read.

You can also use the “preformatted text” tool in the editor (</>) to add backticks around text.

See this post to find the backtick on your keyboard.
Note: Backticks (`) are not single quotes (’).

Just looking at the error message it says this.

but you wrote this