Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b3ba1fc258500052aad8c8c6e9ec7897a87558bed8b56d1e33ea0c78f3ff4552:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^