Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6ffe1ae2969b90664fc5b6b53b262fdc330a0268ce11bf687c21e273be7b4d01:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^