Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fbdc197fb94b795e850076d9e7cf5eed6a499f406db18d39f9ac072fc6d9c36c:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^