Not getting notifications

Hi guys,

I am using this plugin on two websites for quite a while
and I really love it.

But I just found out, that I never get a notification, when
somebody for example pins one of my pictures on Pinterest
or shares a post on Facebook.

So, I checked all the settings, but could not find anything
on notifications.

Did I oversee something or is there just none? Not having
these notfications seems a great loss, as you never know, if
somebody shares your stuff.

Thanks a lot in advance.

https://ww.wp.xz.cn/plugins/simple-share-buttons-adder/