Looking into your sidebar issue. I figured one thing for you and looking into the other but in the meantime sharemarketrider I have a couple of important recommendations for you:
I noticed that you have the All in One SEO Pack plugin. Make sure you have updated to the latest version so as to close a security issues due to a recent vulnerability has been found with older versions of this plugin
At the moment, user enumeration is possible on your WordPress website. Make sure you don’t have the username “admin” as an account on your site because this can be a security issue as well. Hackers usually check for admin user name as many people don’t change this.
On your site I also noticed that you have directory indexing enabled which is a security risk as well. Two examples of what I can see that you have indexing enabled
on is /wp-content/plugins/ and /wp-content/uploads/ indexing enabled
In WordPress it’s always best practices to make sure directory indexing is disabled because the way it’s set up right now, this can potentially allow a hacker to learn a lot about your site due to the fact that this can provide sensitive information on how your site configuration are set up or the content of your WordPress blog.
It’s an easy fix if you install plugins to help you disable directory indexing. If you having problems moving forward with this, let me know and I’ll see what I can do to fix this issue for you.