Fixes

frontend/web/js/upload-files.js

 $(document).ready(function() { 
+    $('.file_upload_bt .file-upload, .file_upload_bt_cs .file-upload_cs, .file_upload_bt_cs .file_drop_cs, .file_upload_bt .file_drop').click(function(){
+           $('.dz-clickable').trigger('click');
+      });
     // Dropzone class:
    // var myDropzone = new Dropzone("div#block_upload", {url: "/bids/bid/upload-files", maxFiles: 1});
     Dropzone.options.blockUpload = {