Help needed for Product Landing Page

Hi people!

So, I’ve been going over some responsive projects again to practice css grid, and I’m stuck on this one. I’ve tried different things to make the review section and the form appear on the page, but nothing has worked so far…
Besides that, I’ve also tried to adjust the page to the user stories, but from user story nº 5 on, they’re not confirming the presence of the required elements within the tags.

Could someone help me figure out why the last to sections aren’t showing (reviews and form) or why the story elements aren’t being recognized within the tags?

Thanks for your attention.

ps: also, the link for the youtube video I’m supposed to have on the page isn’t working…