Class 'HMN_Comment_Popularity' not found

Hello, I’ve installed your plugin on my site and everything seems to be ok, but it probably clashes with nRelate Related Content plugin or with my iHost theme: The thumbnails of nRelate don’t display properly.

Also, when I test my blog in Google pagespeed insights I get the error “An error occurred” for Mobile. I was forced to uninstall your plugin, but when I try to delete plugin I get the error “Fatal error: Class ‘HMN_Comment_Popularity’ not found in /home/filmcu5/public_html/wp-content/plugins/comment-popularity/uninstall.php on line 93.”

https://www.ads-software.com/plugins/comment-popularity/