Germany Addresses aren't showing up

Most members are located in the US or Canada. But there are 3 members that are located in Germany yet they don’t show up on the map. What is going wrong? Their address shows up in the middle of the ocean.
The website is http://www.sportsneuropsychologysociety.com/find-a-doctor/
Do a search for for Gerhard and you’ll see what I mean.
How do I fix this?

https://wordpress.org/plugins/geo-my-wp/