Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b0bf93f9b0833903fa6e001904fcdf66559e137442a9ce31f53adccea5bbea0a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^