Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4c676a957016488e8bf112b34805153b482daab49557cb55ce8ba5369394aae2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^