CODE_ERROR

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

[Error Code: 1101] cadence runtime error Execution failed: error: underflow --> 39ddf3902d84d8a4015a22630d35e508103f7b7f58c45b3c35afce052a3ef21a:17:16 | 17 | } else {let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I2B1;let f2 = fee * I2 / scale + feefee*B2/scale;res = f1*scale/f2;} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^