Advice: for new post, you may describe your issue. If you tell us what is your problem, we can help you more easy. If possible, it would be nice if you could tell us what type of error this step says. So, You can learn a bit how the things works. It´s better for everybody!
Keep that in mind.
Read carefully the instructions:
Below the h1 element, add an h2 element with this text: Cat Photos
In this step, you need to put a h2 opening tag, the text and the h2 closing tag. Don´t delete and don´t change anything.
If you can´t or you don´t know, you can ask again.
Also your h1 opening and closing tags, are changed.