[editor] Js error on very first opening of the editor

knockout.min.js:16 Uncaught TypeError: Unable to process binding "sortable: function (){return {
          template:'snippet',data:snippets,isEnabled:true,options:{'handle':'.move-widget','axis':'y','o…older':'snippet-move-placeholder','greedy':true,'stop':function(event,ui){
              var $element = $(event.target);
              $element.find('.snippet-body').slideDown('fast',function(){ $('.right-panel').scrollTop(lastWindowScrollPosition);});},'helper':function(event){
              lastWindowScrollPosition = $('.right-panel').scrollTop();
              var $element = $(event.target);
              $element.find('.snippet-body').slideUp('fast',function(){
                $('.sortable-snippets').sortable('refreshPositions')});
              var _par = $('<div>')
                .css('overflow','hidden')
                .addClass('card-widget snippet-move-helper')
                .width($element.parents('.snippet').width());
              $('<h2>')
                .addClass('card-heading')
                .html($element.parents('h2').html())
                .appendTo(_par)
                .find('.hover-actions, .snippet-actions')
                .removeClass('hover-actions')
                .removeClass('snippet-actions');
              $('<pre>')
                .addClass('dragging-pre muted')
                .html(ko.dataFor($element.parents('.card-widget')[0]).statement())
                .appendTo(_par);
              _par.css('height','100px');
              return _par;}},dragged:function(widget){
            $('.snippet-body').slideDown('fast',function(){ $('.right-panel').scrollTop(lastWindowScrollPosition);});}} }"
Message: Unable to process binding "template: function (){return { if:['text','markdown'].indexOf(type()) == -1,name:'snippet-execution-controls'} }"
Message: Unable to process binding "if: function (){return isSqlDialect }"
Message: Unable to process binding "if: function (){return formatEnabled }"
Message: Cannot read property 'length' of null