Cannot add marker

Hi,

I cannot add the marker to my map as the map is not shown on the admin page. It had worked until yesterday. There was some error and the map wouldn’t load on the webpage. I deleted and installed the plugin once again. The map is now visible, but I can’t add the marker now.

This is the error message
“The map could not load.
This is normally caused by a conflict with another plugin or a JavaScript error that is preventing our plugin’s Javascript from executing. Please try disable all plugins one by one and see if this problem persists.”

I tried deactivating other plugins but still, it wouldn’t work.

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