Plugin is effecting visibility on website

Hello,

First the plugin is wonderful. I was looking for this a long time, many thanks.

I do have some problems installing it and it looks like its effecting my theme.

I dont no how to fix this but I just want it to look like this.

Can you help fixing it so I can start using and promoting the work of your Plugin.

Thanks again.

https://ww.wp.xz.cn/plugins/community-jar/