Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a4dd706b573e79a1c95078b517276692eb3b0f0a13ba67fd1c51dce54ba5a5d4:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^