Thanks for your concern.
I’ve never received this type of complain & I’ve developed this plugin, so every code is known to me.
I’m sure & no chance of third party ad or malicious script.
At your site’s console showing errors for Google Maps Api which is not related with Logo Slider.
You added shortcode with pre tag, remove pre tag.
Check this – http://gsamdani.com/pre_tag.png
If you have more query / screenshots to show, write here firstname.lastname@example.org