Error message and Hint doesn't help. I'm stuck. Code is correct!

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

I’m quite sure that I did everything correctly. but I still get the error message and the hint is not really giving me a fitting hint to fix the issue.
I copied the text and pasted it here down below.
I can’t continue the course now because of this issue. I hope it can be fixed.

Test= Sorry, your code does not pass. Don’t give up.

Hint = Your link element should be a self-closing element.

  **Your code so far**
<!DOCTYPE html>
<html>
<head>
  <title>Registration Form</title>
  <link rel="stylesheet" href="styles.css">
</head>
<body>
</body>
</html>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.63 Safari/537.36 Edg/102.0.1245.39

Challenge: Step 4

Link to the challenge:

self closing elements are like <link />

Thank you!
Also stuck here, it’s very strange, in the previous tasks / at the end of the link was not required.