Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> dc2864a296cc58e58ce6998b69a12883831da04ad279fc1890a5fd62a80bda18:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^