CODE_ERROR

There is an error in the cadence code of this transaction.

[Error Code: 1101] error caused by: 1 error occurred: * transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed: --> 194381a7ba35a2a52d0e6261cf8b84908b141cb5946cc35a9f8097b9265f987e:22:11 | 22 | if tryBM(tokenInVault: flowTokenVault) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ --> 194381a7ba35a2a52d0e6261cf8b84908b141cb5946cc35a9f8097b9265f987e:96:261 | 96 | let exactVaultIn <- tokenInVault.withdraw(amount: cur);let minfo = mpool.getReserves();let forAmount = SwapConfig.getAmountOutVolatile(amountIn: exactVaultIn.balance, reserveIn: minfo[1], reserveOut: minfo[0], swapFeeRateBps: 30);let token0Vault <- mpool.swap(fromVault: <-exactVaultIn, forAmount: forAmount);let token1Vault <- UsdcUsdtSwapPair.swapToken1ForToken2(from: <- (token0Vault as! @FiatToken.Vault)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: assertion failed: Metapier PierPair: K not maintained --> 609e10301860b683.PierPair:94:12