Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e143b8f979cdb2a94c7f5828bb1079addd45d7c902db603e7c64312a42cdc585:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^