Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/ab0f0719-f636-4c6a-9aea-a6e89f941d31/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-c9c136b9-fefe-4814-981e-929a65e5b083",
      "cw-4caf417b-45a1-4be0-9a9a-4a1460156823"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-7adaaff4-154e-42ab-b2c8-cedaef4fbd48",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/ab0f0719-f636-4c6a-9aea-a6e89f941d31/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-4caf417b-45a1-4be0-9a9a-4a1460156823",
    "thumbnailNavigationPosition": "far-bottom"
  }
}