Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a211ab22601dfcd3d5420a6f0d6afc0c9033a8d67312553d94bf207a22b81a21:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^