SEO & google Website errors

First off the website is WordPress with Avada Theme and I am using Yoast SEO plugin. You must know how to use Avada theme and how to use Yoast. I have the website installed into to different WordPress installations www.cmctelco.com and www.cmctelco.com/blog. I only need errors via google analytics fixed on the blog site. Google analytics are showing lots of errors I need those fixed, Yoast per webpage keyword research done as we have just added about 46 new pages to the website and a lot of different services that need matching keyword research added to the pages SEO Meta description. I want to add one paragraph of content to each page of keywords and key phrases that help support the meta description per page.