Not found when trying to get to the NFT view after creating a new NFT

[j05u3]

Hi, I deployed OpenNFT and then I created an NFT following the guide in the Readme:

But I am getting a 503 response, with "not found" logs in the backend when I try to click on the NFT to get into the NFT view. This is what I visually get:

In the backend the logs show:

Request obtained with "Copy as fetch" from the Chrome Dev Tools:

fetch("https://sweatymarketplace.turuta.pe/api/assets/f6fdd7cfa17848bca425a25588359301/", {
  "headers": {
    "accept": "*/*",
    "accept-language": "en-US,en;q=0.9,es-PE;q=0.8,es;q=0.7",
    "sec-ch-ua": "\" Not A;Brand\";v=\"99\", \"Chromium\";v=\"96\", \"Google Chrome\";v=\"96\"",
    "sec-ch-ua-mobile": "?0",
    "sec-ch-ua-platform": "\"Windows\"",
    "sec-fetch-dest": "empty",
    "sec-fetch-mode": "cors",
    "sec-fetch-site": "cross-site",
    "x-view-as": "SVSDG66EJMI4DOU2XISMAL6ANG5M7DPVSMSAIBYQBVSIIWGLQ3JC5VBKAU"
  },
  "referrer": "https://sweaty-marketplace.web.app/",
  "referrerPolicy": "strict-origin-when-cross-origin",
  "body": null,
  "method": "GET",
  "mode": "cors",
  "credentials": "omit"
});

This is how my NFT looks in the django admin:

Thanks in advance.