Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d5b8d2c11f7464da367beb9723eaedfb65a41133f1fc1e25aeec7bb4accbfaa2:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^