Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> de2838596b6192c3589dd5ef4bb1df0e743e10b2fe1a4f281d4bbf19207e96d2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^