Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 733f1b5976025ea629813213a6d8ec45675df3d9d1afb4b9b72d431c232acba3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^