Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b53768f360f8c232625e1ab6bdf55857dea89794c218929b7be3bfda640fbc8a:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^