Error: No signatures for this pubkey

[chironjit-neoswap]

Hi, i am trying to sign a psbt for an ordinal but i keep getting this error:

PSBT generator:

async function generatePSBTForSale(ordinalUtxoTxId, ordinalUtxoVout, price, paymentAddress) {
    let psbt = new bitcoin.Psbt({ network });

    const tx = bitcoin.Transaction.fromHex(await getTxHexById(ordinalUtxoTxId))
    for (const output in tx.outs) {
        try { tx.setWitness(parseInt(output), []) } catch { }
    }

    const input = {
        hash: ordinalUtxoTxId,
        index: parseInt(ordinalUtxoVout),
        nonWitnessUtxo: tx.toBuffer(),
        witnessUtxo: tx.outs[ordinalUtxoVout],
        sighashType: bitcoin.Transaction.SIGHASH_SINGLE | bitcoin.Transaction.SIGHASH_ANYONECANPAY,
    }

    psbt.addInput(input);

    psbt.addOutput({
        address: paymentAddress,
        value: price,
    });

    return psbt.toBase64();
}

const formattedPsbt = await generatePSBTForSale("7c60d897c2637c1d811eec393f3c2c5d120cf9bb5502ad17e76c96acdd961a89", 0, 10000, segwitAddress1)

PSBT formatting and signing:

const wallet = new Wallet(key1, NetworkType.MAINNET, AddressType.P2TR);
const bufferPsbt = Buffer.from(formattedPsbt, 'base64')
const hexpsbt = bufferPsbt.toString('hex')

const signedPsbtHex = await wallet.signPsbt(hexpsbt, [
    {
      index: 0,
      publicKey: await wallet.getPublicKey(),
      sighashTypes: [
        bitcoin.Transaction.SIGHASH_SINGLE | bitcoin.Transaction.SIGHASH_ANYONECANPAY,
      ],
    },
  ]);

I however get this error when trying to sign:

if (!allHashses.length) throw new Error('No signatures for this pubkey');
                                  ^

Error: No signatures for this pubkey

May i ask if this an issue with my formatting or is this an issue with the local wallet?