Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ad7958cfd30d2602dca928ed2e613e6c445d894156b33a1bbc0bb77c911ecc2a:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^