Still Not Working, No Replies Yet, Is this an Abandoned Plugin?

We really thought this plugin was good, its becoming a nightmare. No replies and its still not working. I also forgot to mention that after installation, we got the error warning from wordpress:

“The plugin generated 17720 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.”

Is this a faulty Plugin? Can the author pls see the following post and see if they can fix this? https://www.ads-software.com/support/topic/plugin-yet-another-related-posts-plugin-yanpp-breaks-admin-js-in-wp-30rc1?replies=12

https://www.ads-software.com/extend/plugins/slideshow-satellite/