Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> fef8642a9b60074c0e4efdf85fba7f4ec4f269fcbf8a84bfd72460721ada0b75:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^