Hi
I fixed problem of error in console about “callback function”
For “map doesn’t display” – check my forum
https://forum.zhuk.cc/index.php/gm-component/7919-error-in-map-placemeark-editor-oops-something-went-wrong?start=6
https://forum.zhuk.cc/index.php/gm-plugin/7922-map-does-no-longer-load?start=0
Ie you should set in component options version 3.53 and until April 2024 think of migration to Joomla 4 or 5
Cheers and Happy New Year