Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> aefdabf6e336724da5c5d16370c2d2cb1c4be1a76929742c556db0a75f68b415:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^