Unable to add the lead event to my Facebook Pixel

Hi all,
I am launching a Facebook ad where prospects will get a piece of downloadable content in exchange for their name and email.

I have a landing page set up to capture the info.

I’m trying to add a lead event to my Facebook Pixel.

I’m running into problems at the point where I have to enter my website URL.

Here is a video of me going through the process.

when I could not fix the problem I turned on the automatic event setting. Will that be helpful?
Any advice would be greatly appreciated.