eresource: Cannot read property 'value' of undefined

Error: TypeError: Cannot read property 'value' of undefinedStack: at j (https://minerva2.folio.gbv.de/chunk.968f372ae15682338bde.js:1:12392)

{
  "id": "47ac380d-749d-4c8f-865f-d0783b3724fc",
  "subType": {
    "id": "2c91808b700fee8c01700ff47abf0025",
    "value": "electronic",
    "label": "Electronic"
  },
  "dateCreated": "2020-02-04T11:27:38Z",
  "tags": [],
  "lastUpdated": "2021-02-22T21:43:00Z",
  "identifiers": [
    {
      "title": {
        "id": "47ac380d-749d-4c8f-865f-d0783b3724fc"
      },
      "status": {
        "id": "2c91808b700fee8c01700ff488d60040",
        "value": "approved",
        "label": "approved"
      },
      "identifier": {
        "value": "1473822-3",
        "ns": {
          "value": "zdb"
        }
      }
    },
    {
      "title": {
        "id": "47ac380d-749d-4c8f-865f-d0783b3724fc"
      },
      "status": {
        "id": "2c91808b700fee8c01700ff488d60040",
        "value": "approved",
        "label": "approved"
      },
      "identifier": {
        "value": "1468-0297",
        "ns": {
          "value": "eissn"
        }
      }
    }
  ],
  "coverage": [
    {
      "id": "b9686c99-b118-4d08-b786-95ebcfb62df0",
      "startDate": "1891-01-01",
      "summary": "v*/i*/1891-01-01 - v*/i*/*"
    }
  ],
  "name": "The @economic journal",
  "suppressFromDiscovery": false,
  "work": {
    "id": "34935301-e54b-49fc-b4ea-9f763fa20489"
  },
  "class": "org.olf.kb.TitleInstance",
  "longName": "The @economic journal",
  "relatedTitles": [
    {
      "id": "7ce4c11b-1f4c-48fd-af1c-24be3dddc490",
      "subType": {
        "id": "2c91808b700fee8c01700ff47aba0024",
        "value": "print",
        "label": "Print"
      },
      "identifiers": [
        {
          "title": {
            "id": "7ce4c11b-1f4c-48fd-af1c-24be3dddc490"
          },
          "status": {
            "id": "2c91808b700fee8c01700ff488d60040",
            "value": "approved",
            "label": "approved"
          },
          "identifier": {
            "value": "0013-0133",
            "ns": {
              "value": "issn"
            }
          }
        }
      ],
      "name": "The @economic journal",
      "longName": "The @economic journal"
    }
  ]
}

{
  "id": "17c0c01b-26c3-4af9-84a5-19e11c864e06",
  "subType": {
    "id": "2c91809c79f397060179f39db1400014",
    "value": "electronic",
    "label": "Electronic"
  },
  "dateCreated": "2021-06-10T02:02:11Z",
  "tags": [],
  "lastUpdated": "2021-06-10T02:02:16Z",
  "publicationType": {
    "id": "2c91809c79f397060179f39df2d10045",
    "value": "journal",
    "label": "Journal"
  },
  "identifiers": [
    {
      "title": {
        "id": "17c0c01b-26c3-4af9-84a5-19e11c864e06"
      },
      "status": {
        "id": "2c91809c79f397060179f39df3080047",
        "value": "approved",
        "label": "approved"
      },
      "identifier": {
        "value": "1473822-3",
        "ns": {
          "value": "zdb"
        }
      }
    },
    {
      "title": {
        "id": "17c0c01b-26c3-4af9-84a5-19e11c864e06"
      },
      "status": {
        "id": "2c91809c79f397060179f39df3080047",
        "value": "approved",
        "label": "approved"
      },
      "identifier": {
        "value": "1468-0297",
        "ns": {
          "value": "eissn"
        }
      }
    }
  ],
  "coverage": [
    {
      "id": "2b7ee4e3-a3c4-4bc0-8162-6804d229c31c",
      "startDate": "1891-01-01",
      "endDate": "2012-12-31",
      "summary": "v*/i*/1891-01-01 - v*/i*/2012-12-31"
    },
    {
      "id": "9b55f41b-b557-4769-b1e9-1d9353d2ed08",
      "startDate": "2019-01-01",
      "summary": "v*/i*/2019-01-01 - v*/i*/*"
    }
  ],
  "name": "The economic journal",
  "type": {
    "id": "2c91809c79f397060179f39db14c0017",
    "value": "serial",
    "label": "Serial"
  },
  "suppressFromDiscovery": false,
  "work": {
    "id": "34c623a1-475a-4c73-b3c0-596705eef548"
  },
  "class": "org.olf.kb.TitleInstance",
  "longName": "The economic journal",
  "relatedTitles": [
    {
      "id": "5ae2530c-cd8b-49fb-a1cd-2f5c60aa7e11",
      "subType": {
        "id": "2c91809c79f397060179f39db13b0013",
        "value": "print",
        "label": "Print"
      },
      "publicationType": {
        "id": "2c91809c79f397060179f39df2d10045",
        "value": "journal",
        "label": "Journal"
      },
      "identifiers": [
        {
          "title": {
            "id": "5ae2530c-cd8b-49fb-a1cd-2f5c60aa7e11"
          },
          "status": {
            "id": "2c91809c79f397060179f39df3080047",
            "value": "approved",
            "label": "approved"
          },
          "identifier": {
            "value": "0013-0133",
            "ns": {
              "value": "issn"
            }
          }
        }
      ],
      "name": "The economic journal",
      "type": {
        "id": "2c91809c79f397060179f39db14c0017",
        "value": "serial",
        "label": "Serial"
      },
      "longName": "The economic journal"
    }
  ]
}