Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> afdcdedeaabec9e26a941e9bce7320fe90cd18a46d431f332c6d89f434eb13c7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^