Missing marker on different domain

Hello!

I’ve been using wp google maps pro for days. I love it is great, but I have a serious problem, which needs a solution really quickly, because my client’s getting really nervous.

My problem is, that I have a map with some markers.
On https://findlost24.eu I can see all of them
On https://findlost24.org I cannot see any of them
The folders are correct, the xml is there, I do not have any error messages. I gave full access on all of the folders on my webpage that are needed for the map, yet nothing happened.

Please help me!

Thank You!

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