Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fc993d0b6a84634fffcf29a072d992eb94c8f9b45f46d7063e7415aaca0402f2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^