Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 179a1cbc49daabaa9c7d36e256005439daf524870ec35b9cc4db52e7ebbc28bf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^