WordPress Slug Issue on Landing Page

I'm experiencing a slug issue on a landing page of my WordPress site. It seems that the page hasn't been created properly, impacting our SEO ranking for a specific keyword. I suspect there might be another page with the same problem, but I can't find it.

I need assistance to:
- Locate any potentially problematic pages
- Fix the slug issue so that it functions correctly
- Ensure our site's SEO is not further impacted

Skills and Experience Required:
- Proficient in WordPress CMS
- Strong SEO knowledge, particularly with Yoast SEO plugin
- Experience troubleshooting and resolving WordPress slug issues
- Able to conduct a thorough site audit to find all issues