Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 43f03de8a9590088e5502a7896f9495b72f2d6566621530f526c9dc84fe9e6dd:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^