when saving a marker I get the error “a marker with the ID 0 does not exist!”

Please check if the database tables needed for Maps Marker Pro have been created by logging into your database tool (usually phpmyadmin) and checking if the tables

  • wp_leafletmapsmarker_markers and
  • wp_leafletmapsmarker_layers

exist. If yes, please turn on WordPress debugging (by adding define(‘WP_DEBUG’, true); to wp-config.php), also have a look into the PHP error log if possible and open a support ticket with the logged results.

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