Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> bc7ecd06327fb6dae4789d321a9e8a071649358f5fdf706bb0e0c94246f74b78:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^