Invalid SSL certificate

Hello and good day.

I am not able to access the Complete Site Audit Checklist after adding and removing the following lines from my .htaccess file:

RewriteEngine on
RewriteCond %{HTTP_HOST} ^yourdomain.com [NC]
RewriteRule ^(.*)$ https://www.yourdomain.com/$1 [L,R=301]

The rest of the site is working fine.

It’s just this page is causing a ssl issue with cloudflare.

Any idea what the issue might be?

https://drive.google.com/file/d/1bXZDYQccoIXl1eonjJVcAZ_CimiLi4RG/view?usp=drivesdk

The page I need help with: [log in to see the link]