I have successfully installed Mapsmarker on http://www.dangelos.it (specifically you can see it at http://www.dangelos.it/dove-siamo). Everything worked perfectly.
But since today, it seems that something is wrong, the map doesn't show up anymore (just the top bar) and if I go inside the admin panel, except the main page of the plugin (./wp-admin/admin.php?page=leafletmapsmarker_markers) all the other pages (settings, markers, any of them) are not accessible because something is wrong with the links. In fact all the links are without the slash between wp-admin and admin.php (./wp-adminadmin.php?page=leafletmapsmarker_markers).
Could this be caused by the switching to the permalink structure I did yersterday?