Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1c3a75877c2e1168bfe5b6e7dd343ab93c7860a018606f90161064090c17ce2d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^