@Cyath, when a test fails click the red button to see which test(s) are failing and text to help you correct the issue.
Be sure and read more than just the first line of the failing message. The ability to read and comprehend error messages is a skill you’ll need to acquire as a developer. Ask questions on what you don’t understand.
The first failing message says
Within the "img-div" element, I should see either a <figcaption> or <div> element with a corresponding id="img-caption" that contains textual content describing the image shown in "img-div".
expected null to not equal null
AssertionError: expected null to not equal null
Do you understand what the test is looking for and why it fails?
The second failing test says
The <img> element should be centered within its parent element.
Image is not centered: expected 0 to be close to 994 +/- 11
AssertionError: Image is not centered: expected 0 to be close to 994 +/- 11
This is a little harder as it is a little vague but you can revisit this lesson to center the image horizontally.
I see someone has given you the answers but I hope that this helps you in the future.