Good morning, 0203062...
I am assuming that you are a student wanting to view a recent Conferences recording in your course. If so, you should be able to do that using the following Guide: How do I use Conferences in a course as a student?. Keep in mind, though, that if your school has not purchased the full BigBlueButton product (the software that runs Conferences), those recordings are only kept for 14 days, and then they are deleted automatically (as also described in this Guide).
I'm tagging @ffdixon in my reply in case I have missed anything. I hope this helps, Khai. Please let Community members know if you have any other questions about this...thanks!
We have also noticed that these recordings can take a while to process and show up. So if the lecture happened within the last couple of hours, you may need to check back in a bit if it isn't showing up yet.