Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ae60d1ce11b4d102c4e2ed8c30274e25b95dfc31d6de5025564ded6cf4e39ac3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^