Fix Google Ad Landing Page Error

I've created a landing page using Lead Pages, and published it for my Google ad campaign. However, after setting up the ad, I received a "Destination Error HTTP error 404". Despite checking the URL accuracy and server settings, I still can't resolve the issue.

What I need help with:
- Fixing the landing page so it is recognizable and can be crawled correctly by Google
- Ensuring the landing page works within my Google ad campaign

Ideal Skills:
- Extensive experience with Lead Pages
- Proficient in troubleshooting Google ad issues
- Knowledgeable about server configurations and URL recognition

Your expertise will greatly improve my ad visibility and campaign effectiveness.