TypeError: Null check operator used on a null value

{
  "id": "7665383265",
  "shareId": null,
  "shortId": "JORDSABUY-APP-382",
  "title": "TypeError: Null check operator used on a null value",
  "culprit": "bookmark_bottom_sheet.dart in _BookmarkBottomSheetState.addParkingToWishlistGroups",
  "permalink": "https://aniccom.sentry.io/issues/7665383265/",
  "logger": null,
  "level": "fatal",
  "status": "unresolved",
  "statusDetails": {},
  "substatus": "new",
  "isPublic": false,
  "platform": "other",
  "project": {
    "id": "1483358",
    "name": "Jordsabuy Mobile App",
    "slug": "jordsabuy-app",
    "platform": "dart"
  },
  "type": "error",
  "metadata": {
    "value": "Null check operator used on a null value",
    "type": "TypeError",
    "filename": "bookmark_bottom_sheet.dart",
    "function": "_BookmarkBottomSheetState.addParkingToWishlistGroups",
    "in_app_frame_mix": "mixed",
    "sdk": {
      "name": "sentry.dart.flutter",
      "name_normalized": "sentry.dart"
    },
    "initial_priority": 75
  },
  "numComments": 0,
  "assignedTo": null,
  "isBookmarked": false,
  "isSubscribed": false,
  "subscriptionDetails": null,
  "hasSeen": false,
  "annotations": [],
  "issueType": "error",
  "issueCategory": "error",
  "priority": "high",
  "priorityLockedAt": null,
  "seerFixabilityScore": null,
  "seerAutofixLastTriggered": null,
  "seerExplorerAutofixLastTriggered": null,
  "isUnhandled": true,
  "count": "1",
  "userCount": 1,
  "firstSeen": "2026-08-11T08:40:17.403000Z",
  "lastSeen": "2026-08-11T08:40:17.403000Z",
  "stats": {
    "24h": [
      [
        1786359600,
        0
      ],
      [
        1786363200,
        0
      ],
      [
        1786366800,
        0
      ],
      [
        1786370400,
        0
      ],
      [
        1786374000,
        0
      ],
      [
        1786377600,
        0
      ],
      [
        1786381200,
        0
      ],
      [
        1786384800,
        0
      ],
      [
        1786388400,
        0
      ],
      [
        1786392000,
        0
      ],
      [
        1786395600,
        0
      ],
      [
        1786399200,
        0
      ],
      [
        1786402800,
        0
      ],
      [
        1786406400,
        0
      ],
      [
        1786410000,
        0
      ],
      [
        1786413600,
        0
      ],
      [
        1786417200,
        0
      ],
      [
        1786420800,
        0
      ],
      [
        1786424400,
        0
      ],
      [
        1786428000,
        0
      ],
      [
        1786431600,
        0
      ],
      [
        1786435200,
        1
      ],
      [
        1786438800,
        0
      ],
      [
        1786442400,
        0
      ]
    ]
  }
}

{
  "id": "cda687baebf34a768a421da5236c919a",
  "event.type": "error",
  "groupID": "7665383265",
  "eventID": "cda687baebf34a768a421da5236c919a",
  "projectID": "1483358",
  "message": "",
  "title": "TypeError: Null check operator used on a null value",
  "location": "bookmark_bottom_sheet.dart",
  "culprit": "bookmark_bottom_sheet.dart in _BookmarkBottomSheetState.addParkingToWishlistGroups",
  "user": {
    "id": "C2276F49-C330-4AFC-A587-0C784126212F",
    "email": null,
    "username": null,
    "ip_address": null,
    "name": null,
    "geo": {
      "country_code": "US",
      "city": "Washington",
      "region": "United States"
    },
    "data": null
  },
  "tags": [
    {
      "key": "app.device",
      "value": "de576449b2edddde408f8612b1373a130278bdd3"
    },
    {
      "key": "dart",
      "value": "Dart 3.11.5 (stable)"
    },
    {
      "key": "dart.name",
      "value": "Dart"
    },
    {
      "key": "device",
      "value": "iPhone15,3"
    },
    {
      "key": "device.class",
      "value": "high"
    },
    {
      "key": "device.family",
      "value": "iOS"
    },
    {
      "key": "environment",
      "value": "production"
    },
    {
      "key": "event.environment",
      "value": "dart"
    },
    {
      "key": "event.origin",
      "value": "flutter"
    },
    {
      "key": "flutter.name",
      "value": "Flutter"
    },
    {
      "key": "flutter0",
      "value": "Flutter 3.41.9 (stable)"
    },
    {
      "key": "flutter0.name",
      "value": "Flutter"
    },
    {
      "key": "handled",
      "value": "no"
    },
    {
      "key": "interface_type",
      "value": "exception"
    },
    {
      "key": "level",
      "value": "fatal"
    },
    {
      "key": "mechanism",
      "value": "PlatformDispatcher.onError"
    },
    {
      "key": "os",
      "value": "iOS 26.5.2"
    },
    {
      "key": "os.build",
      "value": "23F84"
    },
    {
      "key": "os.name",
      "value": "iOS"
    },
    {
      "key": "os.rooted",
      "value": "no"
    },
    {
      "key": "dist",
      "value": "89"
    },
    {
      "key": "release",
      "value": "com.aniccom.jordsabuy@2.7.8+89"
    },
    {
      "key": "user",
      "value": "id:C2276F49-C330-4AFC-A587-0C784126212F",
      "query": "user.id:\"C2276F49-C330-4AFC-A587-0C784126212F\""
    }
  ],
  "platform": "other",
  "dateCreated": "2026-08-11T08:40:17Z",
  "crashFile": null,
  "metadata": {
    "filename": "bookmark_bottom_sheet.dart",
    "function": "_BookmarkBottomSheetState.addParkingToWishlistGroups",
    "in_app_frame_mix": "mixed",
    "type": "TypeError",
    "value": "Null check operator used on a null value"
  }
}