Thumbnail pin wrong, lightbox pin correct

The pin on the thumbnail is off by about 4km while the lightbox map shows our exact location. I use the exact address from google maps.
I have searched the support topics but the other pin address problems are the same on the thumbnail and lighbox maps.

Plugin page: http://www.havuzcu.net/iletisim/

I love the simplicity of this widget and hope to solve this problem so I can keep using it.
Thanks

https://ww.wp.xz.cn/plugins/google-maps-widget/