Failed to load resource: the server responded with a status of 500 (Internal Server Error. the account to the postgres database is not recorded

The addresses from which the transaction takes place are not recorded in the Postgres database, though transaction hash is recorded. I have 2 functions :

1. Update hash transaction API

2.Update account transaction API

Both are pretty similar but # 1 is working, #2 - not.

views.py 
def update_ipfstrans(request, id_transaction):
    index = IndexInfo.objects.all()[0]
    languages = Language.objects.all()
    item = IPFS.objects.get(id=id_transaction)
    if request.method == 'POST':
        form = UpdateIPFSTransaction(instance=item, data=request.POST or None)
        if form.is_valid():
            form.save()
            return redirect('w3:update_ipfstrans', id_transaction=id_transaction)
    form = UpdateTextTransactionForm(instance=item)
    w3 = Web3(HTTPProvider("https://ropsten.infura.io/v3/27709d11030e4a8f8a3066732c9e6b90"))
    gasprice = w3.toWei(item.gas_price, 'gwei')
    s = item.text.encode('utf-8')
    data = str(s.hex())
    gas = item.gas
    return render(request, 'w3/update_ipfstrans.html', context={'form': form, 'gas': gas, 
    'gasprice': gasprice,
                                                          'data': data, 'index': index, 'languages': languages,
                                                                'id_transaction': id_transaction})

class UpdateAccountIPFS(APIView):
    def post(self, request, *args, **kwargs):
        account = IPFS.objects.get(id=request.data.get('id'))
        account.account = request.data.get('account')
        account.save()
        return Response(account.user_wallet_address, account)

models.py
class IPFS(models.Model):
    objects = None
    file = models.FileField(null=True, blank=True)
    user = models.ForeignKey(User, null=True, blank=True, on_delete=models.CASCADE)
    result_hash = models.CharField(max_length=250, null=True, blank=True)
    account = models.ForeignKey(AccountMetamask, null=True, blank=True, on_delete=models.CASCADE)
    to_account = models.CharField(max_length=250, null=True, blank=True)
    gas = models.IntegerField(default=0, null=True, blank=True)
    gas_price = models.IntegerField(default=0, null=True, blank=True)
    text = models.CharField(max_length=250, null=True, blank=True)
    hash_ipfs = models.CharField(max_length=250, null=True, blank=True)
   
js
sendEthButton.addEventListener('click', () => {
  ethereum
    .request({
      method: 'eth_sendTransaction',
      params: [
        {
          from: localStorage.getItem('myAccount'),
          to: toaccount,
          data: data,
          gasPrice: "0x" + Number(gasprice).toString(16),
          gas: Number(gas).toString(16),
        },
      ],
    })
    .then((txHash) => {
        console.log(txHash);
        console.log('result');

        let xhr = new XMLHttpRequest();
        xhr.open("POST", "http://127.0.0.1:8000/w3/update/ipfs/hash/transaction/");
        xhr.setRequestHeader("Accept", "application/json");
        xhr.setRequestHeader("Content-Type", "application/json");
        xhr.onload = () => console.log(xhr.responseText);
        let data = JSON.stringify({
          "id": id_transaction,
          "result_hash": txHash,
        });
        xhr.send(data);
    })
    .catch((error) => console.error);
});

ethereumButton.addEventListener('click', () => {
  getAccount();
  let xhr = new XMLHttpRequest();
        xhr.open("POST", "http://127.0.0.1:8000/w3/update/account/ipfs/");
        xhr.setRequestHeader("Accept", "application/json");
        xhr.setRequestHeader("Content-Type", "application/json");
        xhr.onload = () => console.log(xhr.responseText);
        let data = JSON.stringify({
          "id": id_transaction,
          "account": localStorage.getItem('myAccount'),
        });
        xhr.send(data);
});

async function getAccount() {
  accounts = await ethereum.request({ method: 'eth_requestAccounts' });
}
</script>

Has anyone else experienced this and knows how to help?