Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a71d803d73f13d3540af2172c2822d05dbd1f646095f83eb0bdce0b6888afafa:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^