(400 Bad Request) when creating a webflow item

Hi,

I’m trying to create an item in Webflow CMS using ChatGPT’s output, but when I make the HTTP request to create the item, I get a 400 Bad Request error. However, when I test the request without ChatGPT’s output, it works fine.

Does anyone have any idea what might be causing the issue?
Thanks

The webflow request:

[
    {
        "ca": null,
        "qs": [],
        "url": "https://api.webflow.com/v2/collections/ID/items/bulk",
        "data": "{\n  \"cmsLocaleIds\": [\n    \"ID_LOCAL1\",\n    \"ID_LOCAL2\"\n  ],\n  \"isArchived\": false,\n  \"isDraft\": true,\n  \"fieldData\": {\n    \"post-body\": \"Once upon a time, in a quaint little village nestled at the edge of an ancient forest, there lived a curious girl named Lily. Her family's cottage was surrounded by the most beautiful garden for miles around, bursting with roses, sunflowers, and lilies that bloomed in a riot of colors. But what made the garden truly special was the old oak tree that stood at its heart, its roots twisting and turning beneath the earth like gnarled fingers.\n\nOne sunny afternoon, as Lily tended to the flowers, she noticed a shimmering light flickering between the roots of the oak tree. Intrigued, she knelt down and brushed aside the leaves and soil, revealing a small, ornate door made of silver and engraved with tiny symbols that glowed faintly.\n\nWith a mix of excitement and apprehension, Lily reached out and touched the door. It swung open silently, revealing a staircase spiraling down into the depths. Taking a deep breath, she stepped inside, the door closing gently behind her.\n\nAs she descended, the air grew warmer and filled with the scent of jasmine and honey. The staircase opened into a vast underground world bathed in golden light. Towering mushrooms with caps like umbrellas stretched upwards, and luminescent flowers bloomed along the winding paths. Creatures unlike any she had ever seen fluttered about—tiny winged foxes, butterflies with stained-glass wings, and rabbits that glowed softly in the twilight.\n\n\"Welcome, Lily,\" a voice chimed. She turned to see a small figure hovering nearby—a sprite with iridescent wings and a dress made of petals.\n\n\"How do you know my name?\" Lily asked, astonished.\n\n\"We know all who tend the garden above,\" the sprite replied with a twinkling laugh. \"I'm Aurora. We've been waiting for you.\"\n\n\"Waiting for me?\"\n\n\"Yes. The heart of our world is losing its light, and only someone from above can help restore it.\"\n\nAurora led Lily through the enchanting landscape to a clearing where a grand tree stood, its leaves fading and branches drooping. \"This is the Life Tree,\" Aurora explained. \"It sustains our world, but its magic is dwindling.\"\n\n\"How can I help?\" Lily asked earnestly.\n\n\"You carry the touch of the sun and the care of the gardener,\" Aurora said. \"If you share some of your light and love, the tree may yet be saved.\"\n\nWithout hesitation, Lily placed her hands on the trunk of the Life Tree and closed her eyes. She thought of her garden above—the warmth of the sun, the joy of new blossoms, the songs of the birds. A soft glow emanated from her hands, spreading across the tree. Slowly, the leaves regained their vibrant hues, and the branches lifted skyward.\n\nCheers erupted around her as the creatures of the magical world celebrated. The air was filled with music as flowers danced and streams of light cascaded like fireworks.\n\n\"Thank you, Lily,\" Aurora said, her eyes shining. \"You have restored the balance.\"\n\n\"I'm happy I could help,\" Lily replied, smiling widely.\n\nAs the festivities wound down, Aurora guided Lily back to the staircase. \"You can return whenever you wish,\" she said. \"Just remember, the door will always open for those with kindness in their hearts.\"\n\nClimbing back up, Lily emerged into her garden as the first stars began to twinkle above. The silver door vanished, but she knew the magical world was still there, just beneath the roots of the old oak tree.\n\nFrom that day on, Lily tended her garden with even more love, knowing that her world and the one below were connected in ways she had never imagined. And sometimes, when the wind whispered through the leaves, she thought she could hear Aurora's laughter ringing softly, a secret melody shared between friends.\",\n    \"name\": \"kPaNve -  magical world under a garden \",\n    \"slug\": \"kPaNve\"\n  }\n}",
        "gzip": true,
        "method": "post",
        "headers": [
            {
                "name": "Authorization",
                "value": "Bearer TOKEN
            {
                "name": "Content-Type",
                "value": "application/json"
            }
        ],
        "timeout": null,
        "useMtls": false,
        "authPass": null,
        "authUser": null,
        "bodyType": "raw",
        "contentType": "application/json",
        "serializeUrl": false,
        "shareCookies": false,
        "parseResponse": true,
        "followRedirect": true,
        "useQuerystring": false,
        "followAllRedirects": false,
        "rejectUnauthorized": true
    }
]

The error:

Error: 400 Bad Request
{"msg":"Invalid request body","code":400,"name":"ValidationError","path":"/v2/collections/ID/items/bulk","err":"ValidationError: Invalid request body"}