Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 321e4bf8b0da0c85cfbbf2114ad1a80b4aa579462a15b649f9d4634f5f82c7b8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^