Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cf7c1a0d8b8be3b20ac35f2fe66414593364a32ab25256cd5f9d8b051af9342f:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^