CODE_ERROR

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

[Error Code: 1101] cadence runtime error Execution failed: error: underflow --> 9a19d8508d94f5c15fe4313bf0998bf73a21884c98381f7fc8061f5b412e3df8:13:197 | 13 | let I1B2sqr: UInt256 = SwapConfig.sqrt(I1B2);let I2B1sqr: UInt256 = SwapConfig.sqrt(I2B1);let fee: UInt256 = 997000000000000000;let feefee: UInt256 = 994009000000000000;let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;let f2 = fee * B2 / scale + feefee*I2/scale;let res = f1*scale/f2; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^