How to solve Robots.txt problem with WordPress fresh install?

How to solve Robots.txt problem with WordPress fresh install?

I installed a fresh copy of WordPress few weeks ago and I have been having
some strange problems.
1- I get this message : "Comments for Yad Faeq yadfaeq.com/ý A description
for this result is not available because of this site's robots.txt – learn
more." When I google my name. I re-checked setting and I haven't checked
the "discourage option"
2- I installed WP Better Security and Yoast SEO plugin. Now I have another
problem!
When I google my domain RANDOM Web Sniffing Websites come up that exposes
my data server and many more thing!
Where did I go wrong ?
PS: My robots.txt is fixed to disallow only Plugin Folder since yesterday
(not too long)