Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 68beced17e1f272c1d64e68907d7a9b829dda7dbb450d2d5bde0fc1ffc637152:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^