Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a20645cf70a36fcc5a81e418fc275e7d9b786f8b3c70f5d3e0ef6eebb9864dec:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^