Mirador viewer

TypeError: Failed to fetch

{
  "manifest": {
    "error": "TypeError: Failed to fetch",
    "id": "https://iiif.quartexcollections.com/qstarter29/iiif/7dd3a797-2096-4b3c-b487-2adf697be8e0/manifest",
    "isFetching": false
  },
  "window": {
    "collectionIndex": 0,
    "companionAreaOpen": true,
    "companionWindowIds": [
      "cw-ec93adc4-df0f-4dfa-b6e4-bb22ae358fe8",
      "cw-496b3be9-b814-4efb-b95d-c1c3953e088c"
    ],
    "draggingEnabled": true,
    "highlightAllAnnotations": false,
    "id": "window-f6626a7c-df11-4dde-a940-681344169d39",
    "manifestId": "https://iiif.quartexcollections.com/qstarter29/iiif/7dd3a797-2096-4b3c-b487-2adf697be8e0/manifest",
    "maximized": false,
    "rangeId": null,
    "rotation": null,
    "selectedAnnotations": {},
    "sideBarOpen": false,
    "sideBarPanel": "info",
    "thumbnailNavigationId": "cw-496b3be9-b814-4efb-b95d-c1c3953e088c",
    "thumbnailNavigationPosition": "far-bottom"
  }
}