After installing plugin site is not displaying correctly.

Hello,

I installed this plugin in my WordPress site, but after installing my site is behaving like a mad. Many pages doesn’t show content. Dropdown menu is not showing on hover. But if i deactivate the plugin site works fine.

I like this plugin and it covers my desire. That’s why i don’t want to remove this from my site.

Can you please help me on this?

Thanks.

https://www.ads-software.com/plugins/gallery-video/