Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3aabb75487489e1ac15d0de5705e5a0caf87d31667322a5044690bac72c2343d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^