Shortcodes appear in blog entry "Preview" on Facebook/Google

First of all, thank you for your wonderful plugin!

I have a headache when using your plugin:
When I click on the Facebook/Google+ share button on my blog post, on the pop-up screen, the plugin includes the shortcodes that I used in the content to generate the short description of my blog entry. And the short description cannot be edited.

Please visit this URL and click on Facebook/Google+ share to see what I mean.
http://gtr-arbor.com.hk/crash/

Could you please advise on how I can alter the code to:
– Exclude the shortcodes, that are used in the content, from the blog “excerpt” in the share summary; OR
– Use the wordpress excerpt for posts in the blog “excerpt” in the share summary; OR
– Allow the person to edit the blog excerpt on the pop-up window (when sharing a link directly via Facebook status, the excerpt of the content can be edited.); OR
– (last resort) Remove the excerpt text completely from the share summary

https://wordpress.org/plugins/ultimate-social-media-icons/