Hi Angelika,
thanks for your feedback (I`d appreciate your review at http://wordpress.org/support/view/plugin-reviews/leaflet-maps-marker even more 😉
regarding your issue: in the browser console the following error is displayed:
<!– WP Super Cache is installed but broken. The constant WPCACHEHOME must be set in the file wp-config.php and point at the WP Super Cache plugin directory. –>
This means than probably you uninstalled the plugin WP Super Cache by deleting the files directly from the server instead of using the WordPress plugins page / uninstall function.
To fix this, please connect to your server via FTP and delete the file /wp-content/advanced-cache.php (make a backup first).
Afterwards the markers should show up again.
best,
Robert
Thamks for answering so fast
I’ve deletedt the plugin and it works!
Best,
Angelika