send taproot multisig withdraw tx,got:Operation not valid with the current stack size

I create a taproot multisig script,and send some satoshi to the script address. then,withdaw satoshi from the script with 2 signatures,but got error:{"code":-26,"message":"mandatory-script-verify-flag-failed (Operation not valid with the current stack size)"} but if with 3 signatures,it's ok.tx:https://mempool.space/testnet/tx/c1b7a044776beb21856c91f7d3d688a91011f4321c6348c8c981c26082074341

script:key1 OP_CHECKSIG key2 OP_CHECKSIGADD key3 OP_CHECKSIGADD OP_2 OP_GREATERTHANOREQUAL my js code: const leafKeysWif = [ '---', '---', '---', ] const leafKeys = [] const leafPubkeys = [] for (const leafKeyWif of leafKeysWif) { const leafKey = ECPair.fromWIF(leafKeyWif, network) leafKeys.push(leafKey) leafPubkeys.push(toXOnly(leafKey.publicKey)) }

leafPubkeys.sort((a, b) => a.compare(b)) leafPubkeys.forEach((pubkey) => { console.log(pubkey.toString('hex')) })

const ops = [] leafPubkeys.forEach((pubkey) => { if (ops.length === 0) { ops.push(pubkey) ops.push(bitcoin.opcodes.OP_CHECKSIG) } else { ops.push(pubkey) ops.push(bitcoin.opcodes.OP_CHECKSIGADD) } }) ops.push(bitcoin.opcodes.OP_2) ops.push(bitcoin.opcodes.OP_GREATERTHANOREQUAL) const leafScript = bitcoin.script.compile(ops)

const internalPubkey = makeUnspendableInternalKey(undefined) const payment = bitcoin.payments.p2tr({ internalPubkey: internalPubkey, scriptTree: { output: leafScript, }, redeem: { output: leafScript, redeemVersion: LEAF_VERSION_TAPSCRIPT, // 0xc0 }, network: network, })

console.log(payment.address) //tb1pp33rqchke8lh3425uunvtuq0kcrslupwm7kxf9rcap6s05k3ukhqmcplhw console.log(payment.output.toString('hex'))// 51200c623062f6c9ff78d554e726c5f00fb6070ff02edfac649478e87507d2d1e5ae

// controlBlock const witness = payment.witness const controlBlock = witness[witness.length - 1] console.log('controlBlock', controlBlock.toString('hex'))// c050929b74c1a04954b78b4b6035e97a5e078a5a0f28ec96d547bfee9ace803ac0

const psbt = new bitcoin.Psbt({ network: network }) const utxoHash = '83c307875653061a6574f8956c86efe69a86f7a671dfea3078b2bb434fcfb84b' const utxoVout = 0 const utxoAmount = 100000 const sendAmount = utxoAmount - 80000 psbt.addOutput({ value: sendAmount, address: 'tb1ph8jzyv68rwx436wtnr760tsg3ut07ml8zueuqcwww04fdmrp8ntqaqjmsp' }) psbt.addInput({ hash: utxoHash, index: utxoVout, witnessUtxo: { value: utxoAmount, script: payment.output }, })

psbt.updateInput(0, { tapLeafScript: [ { leafVersion: LEAF_VERSION_TAPSCRIPT, script: leafScript, controlBlock: controlBlock, }, ], })

console.log(psbt.toHex())

psbt.signInput(0, leafKeys[0]) psbt.signInput(0, leafKeys[1]) // psbt.signInput(0, leafKeys[2]) // if add the third signature,tx is ok psbt.finalizeAllInputs() console.log(psbt.toHex()) const tx = psbt.extractTransaction() const rawTx = tx.toBuffer() const hex = rawTx.toString('hex') console.log(hex)

const broadcast = async () => { const baseURLs = 'https://mempool.space:443/testnet/api/' const cli = new BitcoinClient(baseURLs, 30000) const rsp = await cli.postTransaction(hex) console.log(rsp) }

broadcast()



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