Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b953fd3746aa0b8d7ec3a41b946b6d1aaec81bd99417350590bfed76606afa41:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^