Cannot Store Data Unexpected token '-'

blockManager: {
    appendTo: "#blocks",
  },
  styleManager: {
    appendTo: "#styles-container",
    sectors: [
      {
        name: "Dimension",
        open: false,
        buildProps: ["width", "min-height", "padding"],
        properties: [
          {
            type: "integer",
            name: "The width",
            property: "width",
            units: ["px", "%"],
            defaults: "auto",
            min: 0,
          },
        ],
      },
    ],
  },
  layerManager: {
    appendTo: "#layers-container",
  },
  traitManager: {
    appendTo: "#trait-container",
  },
  selectorManager: {
    appendTo: "#styles-container",
  },
  panels: {
    defaults: [
      {
        id: "basic-actions",
        el: ".panel__basic-actions",
        buttons: [
          {
            id: "visibility",
            active: true, // active by default
            className: "btn-toggle-borders",
            label: '<i class="fa fa-clone"></i>',
            command: "sw-visibility", // Built-in command
          },
        ],
      },
      {
        id: "store-data",
        el: ".panel__save-data",
        buttons: [
          {
            id: 'save-db',
            className: 'fa fa-flopy icon-flopy',
            label: '<i class="far fa-save"></i>',
            command: 'save-db',
            attributes: { title: 'Save DB' }
          },
        ],
      },
      {
        id: "panel-devices",
        el: ".panel__devices",
        buttons: [
          {
            id: "device-desktop",
            label: '<i class="fa fa-television"></i>',
            command: "set-device-desktop",
            active: true,
            togglable: false,
          },
          {
            id: "device-mobile",
            label: '<i class="fa fa-mobile"></i>',
            command: "set-device-mobile",
            togglable: false,
          },
        ],
      },
    ],
  },
  deviceManager: {
    devices: [
      {
        name: "Desktop",
        width: "",
      },
      {
        name: "Mobile",
        width: "320px",
        widthMedia: "480px",
      },
    ],
  },
  plugins: ["gjs-blocks-basic"],
  pluginsOpts: {
    "gjs-blocks-basic": {},
  },
});
// Commands
editor.Commands.add('save-db', {
  run: function (editor, sender) {
    sender && sender.set('active', 0); // turn off the button
    editor.store();
  }
});
editor.on('storage:load', function(e) { console.log('Loaded ', e);});
editor.on('storage:store', function(e) { console.log('Stored ', e);});  

editor.Commands.add("set-device-desktop", {
  run: (editor) => editor.setDevice("Desktop"),
});
editor.Commands.add("set-device-mobile", {
  run: (editor) => editor.setDevice("Mobile"),
});
`
backend store-webpage
`exports.storeWebpage = async (req, res)=>{
    const { gjs-assets, gjs-components, gjs-css, gjs-html, gjs-styles } = req.body;
    if (user){
      var gjs_content = new GjsModels({
          assets:assets,
          components:components,
          css:css,
          html:html,
          styles:styles
      })
      await gjs_content.save()
      .then(response=>{
          console.log(`Saved Successful with ${response}`)
          res.redirect('/admin/story-maker');
        }).catch(err =>{
            console.log(`Saved Error ${err.message}`)
            res.redirect('/admin/story-maker');
      })
    }
}`