Instagram sharing not working

Hello can you pls help me.

I have blog: https://www.fotodobias.cz/blog-fotografa/

In my posts (for example: https://www.fotodobias.cz/reklamni-studiova-fotografie/ )i would like to have sharing buttons thats why i using your plugin. But when i click to instagram share (to share post to the instagram) it is not sharing only i get direct to the instagram. Is any way how to fix this or is just imposible to share the posts to the instagram.

Thank you for your advice and great free plugin.

The page I need help with: [log in to see the link]