Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 8fab23f554eb8de6fbe69cf11c5f692297805cc623416f77530287eba5da2e5c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^