missing author missing entry title – and broken links

i keep getting these errors.from the google master on tructured Data > hentry (markup: microformats.org)

Missing: author
Missing: entry-title
Missing: updated

is there any fix for this?
also read your suggestion to download a plug in but got the below error

i thought you will be addressing this in your next update

Fatal error: Cannot redeclare add_ajax_library() (previously declared in /home1/myinterl/public_html/wp-content/themes/HighendWP/functions.php:1073) in /home1/myinterl/public_html/wp-content/plugins/all-in-one-schemaorg-rich-snippets/functions.php on line 79

on another topic i have several broken links that i need your assitance on

gallery_category/nature/
500

vimeo-post/
404
10/8/14

2
self-hosted-audio-post/
404
10/8/14