Google Map not showing ? neither on posts or as a widget

So many plugins - membership, then prosites and still few didn't worked to my expectations. I thought lets try something else - and guess what? even this didn't worked for me.

I already had myself listed on google maps. Can I show that on my website - using this plugin. I even tried creating a new one - it just doesn't shows up - just a title that I gave and nothing else.

I really wanna use these plugins - but why they just don't seem to be very promosing...to me?

Kindly help.