Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> afbc2aaea2c0eba26c9492dea47ec7d02247e2f9828510816c061bbeb41761c2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^