Fix Errors in my Wordpress website and need some changes

I need a WordPress expert to fix some broken links on my homepage and make some functionality updates.

Requirements:
- Fix broken links on the homepage
- Implement some functionality updates

Ideal skills and experience:
- Proficient in WordPress
- Experience in troubleshooting and fixing broken links
- Ability to make functionality updates as per requirements

Here is the details:

having issues with Google Search - when crawling Pages on my site - it is coming across a breadcrumbs issue. I have tried everything including installing Yoast and Yoast Premium, but it is still not fixed. Google Error is: '

error: Unnamed item1 critical issue
Missing field 'itemListElement