Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f208719ed793c91d47e9363ac9f2ec84a0b6f4b03280809dc12539e7b9288bff:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^