Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d8a7100730fc7c299106f52d6b4079a962659ba5ab5532033532144173176b2f:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^