Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 179fd1d7b631354041a34b18d05a5ff71e5beaaac3b9b1b136fc65608f2e1e03:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^