Trello Board button powerup is not working properly

Hello Team,

I created a trello power up button with index.html and in popup i’m trying to open search.html static file with no content. I deployed the code to aws and created a custom power up with the I frame URL. Board button is displaying on trello board. When I’m clicking on button it is showing missing authentication token error. Please help me on this to resolve

“board-buttons”: function (t, options) {

      return \[

        {

          icon: "https://i.ibb.co/6sbknH0/logo-stroke-32pt-style-2-no-stroke.png",

          text: "Manual Sync",

          callback: function (t) {

            return t.popup({

              title: "Search Bullhorn Job",

              url: "search.html",

            });

          },

        },

      \];

    }