Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6fae7de3bd236b111f4559101733fa6b498a2e79fca384a36faf505d7e10230b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^