Why does it keep saying that?

Tell us what’s happening:
Describe your issue in detail here.

It keeps saying that I don’t have the p element closing tag, which is the < /p> at the end of the p element, and it keeps saying “ Each of your p elements should have a closing tag.” I already have the closing tag. I just started and I don’t know what’s going on. (You can scroll and see how I have done it)

  **Your code so far**

<h2>CatPhotoApp</h2>
<main>
<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff </p>
<P>  Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>
</main>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.1 Safari/605.1.15

Challenge: Introduction to HTML5 Elements

Link to the challenge:

This capital letter is confusing the tests. Computers are dumb. The smallest details are important to them.