Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0cac36a390bea3c7b622a40dedafe796d25f8428aae5ae2e17cfba6ec720980f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^