Transaction

[Error Code: 1101] error caused by: 1 error occurred:
	* transaction execute failed: [Error Code: 1101] cadence runtime error: Execution failed:
error: underflow
  --> 60ad0522662bbbfed0fc38f79cb5de01813a16eaddb031cc2998a7ede7fc23cd:13:506
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13 |             let swap0InVault <- inVault.withdraw(amount: cur);let swap0OutVault <- FlowSwapPair.swapToken1ForToken2(from: <- (swap0InVault as! @FlowToken.Vault));let swap1OutVault <- UsdcUsdtSwapPair.swapToken2ForToken1(from: <- (swap0OutVault as! @TeleportedTetherToken.Vault));let tokenOutVault <- getAccount(0xfa82796435e15832).getCapability<&{SwapInterfaces.PairPublic}>(SwapConfig.PairPublicPath).borrow()!.swap(vaultIn: <- swap1OutVault, exactAmountOut: nil);;let iter = tokenOutVault.balance;e... 
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