Correct keys + Google error

Hi! I need some help here. This seems contradicting:

http://prntscr.com/1h2pn9l

http://prntscr.com/1h2p8tx

Correct keys, but an error:
Google Maps kan niet correct geladen worden op deze pagina.
Bent u eigenaar van deze website?

Thanks!

The page I need help with: [log in to see the link]