Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 71e92d6cc686f6f7d36110c2931de34ca47515ab35402c59c22f2b749d836494:14:32
   |
14 |                                 let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^