Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 569d28a21f30ad3038a7805d650933ecf67c48b11d1707519fc25f75bcf5e9ad:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^