Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 109f12b0bf95da77947773882aa52dc9e16918bddc2dd2ac7b2aff32c12afdda:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^