admin shared a zoom website for recorded meeting!

If it’s a recorded meeting, you usually don’t “join” it like a live meeting. The host should have shared a recording link. When you open the link, it may ask for the passcode to watch the recording.

Try opening the link in your browser, enter the passcode if prompted, and it should start playing. If it still doesn’t work, the host may need to check the sharing permissions for the recording.