Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 169f186507712aa937f8a0fc068ddc831d62462d59ca21f572ad1f5e1d5b3baf:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^