Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cdc425f14d9b8cec5c2e886ce208663d2cc6c603912e04e4f1fe73fab404f21c:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^