Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 47915175f702854a7a9b13a628cfdefd4f20508b33d498cad938f1ededca08a7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^