Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> af64be76cfdde095163660df9b0e7a5bb9cd4edf1d55ef4474082eaf24a17cad:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^