Jplayer bug with Block refresh

Hello,

I have a problem with a Jplayer that I use in a block with this code:

$vars = array();

            $vars['items'][] = array(
                'url' => $node->field_extrait_audio[LANGUAGE_NONE][0]['uri'],
                'ext' => 'mp3',
                'type' => 'audio',
                //'label' => 'Some music',
            );

            $vars['settings'] = array(
                'mode' => 'playlist',
                'solution' => 'html, flash',
                'preload' => 'none',
                'volume' => 100,
                'muted' => FALSE,
                'autoplay' => FALSE,
                'repeat' => FALSE,
                'continuous' => FALSE,
                'backgroundColor' => '#fff',
                'progressBar' => FALSE,
            );

            print theme('jplayer', $vars);

This code works, but my block uses the module "Block refresh" (https://www.drupal.org/project/block_refresh) to reload the block information regularly. When the block is refreshed, the player no longer works.

The JS console appears:
"Uncaught TypeError: Cannot read property 'solution' of undefined" in the jplayer.js file at this location:

$(player).jPlayer({
            ready: function() {
              Drupal.jPlayer.setFiles(wrapper, player, 0, playerSettings.autoplay);
              // Make sure we pause other players on play
              $(player).bind($.jPlayer.event.play, function() {
                $(this).jPlayer("pauseOthers");
              });
              Drupal.attachBehaviors(wrapper);

              // Repeat?
              if (playerSettings.repeat != 'none') {
                $(player).bind($.jPlayer.event.ended, function() {
                  $(this).jPlayer("play");
                });
              }
              
              // Autoplay?
              if (playerSettings.autoplay == true) {
                $(this).jPlayer("play");
              }
            },
            swfPath: self.settings.swfPath,
            cssSelectorAncestor: '#'+playerId+'_interface',
            solution: playerSettings.solution,
            supplied: playerSettings.supplied,
            preload: playerSettings.preload,
            volume: playerSettings.volume,
            muted: playerSettings.muted
          });

How can I solve this problem?
Thank you in advance.