Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2ca67b32a8d81fb8dbccf78b16949246188dd74b0fe3afbfa51599275e074445:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^