Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> e1aa07e8826af59148f90345d7b49a0d8e9e3d5e73d86e18a06fce5c11eddb35:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^