Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 294e8e2a99079f86a9a8f4f3b150e026b74290b0ff16cad6c4a793753bccacd2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^