Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 973500b9683d7f0003d6397594b6168cd6e6fa49aa4aa8c9db9ce18cf71378c3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^