Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 929ae0e09752130efc347ecab0e03324eed9c480bd06ef7144cb0e2a3ecadcb9:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^