Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4ddfe1ea775405cccda13b52ddf5a3347997a7a2834fecc47d22bc600810836d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^