Site scan revealed issues...

[Hawaii-Broker]

I am not sure why my site is showing these issues. I use the popular all-in-one seo plugin. I assign tags, create keywords, descriptions, and titles, for almost every single post. Is there a problem with my theme, my plugins or me, or all? I can't figure it out! Your help is greatly appreciated, and it's nice to see the new forum, been a while. Here's part of the scan report findings...

Proper Title Tags

Well-constructed title tags contain the main keyword for the page, followed by a brief description of the page content. It will be less than 65 characters and avoid using stop words such as: a, if, the, then, and, an, to, etc. Your title tag should also be limited to the use of alphanumeric characters, hyphens, and commas.
You have title tag issues on some pages.
13 pages have invalid title tag characters.
44 pages have stop words in the title.
41 pages have title > 65 characters.

Proper Description Tags

Good description tags contain information about the page's content and persuade search engine users to visit your web site. They should be between 25 and 35 words in length.
Look out! The majority of your pages have description tag issues.
14 pages have non-alpha characters in the description meta tag.
4 pages have description tags > 250 characters.
88 pages have no description tags.

Proper Keywords Tags

Your keywords meta tag should contain between 5-10 keywords or keyword phrases that are also found in page content.
Look out! The majority of your pages have keywords meta tag issues.
1 page has keyword tags with > 15 keyword phrases.
109 pages have no keywords meta tag.