Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 64557b2da0e511777eea6eff86dbf6e7455b1c0269caea5c35fb8afc15ea58cf:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^