Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ff6f8f96353544f2f655b5b6a9fd399caffeb4aa1d93b075094e4e72473a7271:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^