Virtual List error on create, unexpected token ,

The error from console is pointing on virtual list creation line:

var virtualList = app.virtualList.create({

Error from console:

VM355:7 Uncaught SyntaxError: Unexpected token ,
at Template7Class.compile (template7.esm.js:688)
at Function.compile (template7.esm.js:756)
at new VirtualList (virtual-list-class.js:100)
at _construct (construct.js:19)
at Object.create (constructor-methods.js:20)
at FxApp.studentsList (app.js:717)
at eval (app.js:708)
at Object.eval [as success] (app.js:535)
at fireCallback (request.js:56)
at XMLHttpRequest.onload (request.js:239)

My whole virtual list code:

var virtualList = app.virtualList.create({
  // List Element
  el: ".virtual-list",
  // Pass array with items
  items: [{
    name: "test",
    category: "test",
  // Custom search function for searchbar
  searchAll: function (query, items) {
    var found = [];
    for (var i = 0; i < items.length; i++) {
      if (
        items[i].name.toLowerCase().indexOf(query.toLowerCase()) >= 0 ||
        query.trim() === ""
    return found; //return array with mathced indexes

    `<li class="swipeout">
    <div class="swipeout-content">
      <div class="item-link item-content">
        <div class="item-inner">
          <div class="item-title-row">
            <div class="item-title">{{name}}</div>
            <div class="item-after">{{category}}, {{progress}}/30, {{}}</div>
    <div class="swipeout-actions-left">
      <a href="/student-info/{{pesel}}/" class="color-green swipeout-overswipe">Szczegóły</a>
    <div class="swipeout-actions-right">
      <a href="#" data-id="{{pesel}}" data-student="{{name}}" class="back color-blue swipeout-overswipe student-link text-white">Dodaj</a>

  // Item height
  height: app.theme === "ios" ? 63 : app.theme === "md" ? 73 : 46,

I have no idea why this isn’t working. Any help will be appreciated

Ok i figured it out. The problem was that blank {{}} in itemTemplate

<div class="item-after">{{category}}, {{progress}}/30, {{}}</div>