Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d4a9f8d252972768eb02aa9e188b126012718c86c6eaa6bd8863f4d2d499cc8a:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^