Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2bb01c2453679a1a0a8e527a33450e91da3b0afc687a3f80cb12d81ab71d19a3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^