footable.js empty error

app.js

$('.table').footable({
  "toggleColumn": "last",
  "expandFirst": true,
  "empty": "no results",
  "columns": [
    { "name": "id", "title": "ID", "breakpoints": "xs" },
    { "name": "firstName", "title": "First Name" },
    { "name": "lastName", "title": "Last Name" },
    { "name": "jobTitle", "title": "Job Title", "breakpoints": "xs" },
    { "name": "started", "title": "Started On", "breakpoints": "xs sm" },
    { "name": "dob", "title": "DOB", "breakpoints": "xs sm md" }
  ],
  "rows": []
});