Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c4edd78d70f1aa718e0a8fcf585589166e1f0162436cdc408ca39e4465fa51cf:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^