Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6b620414195aeaffb6a7f7e1febe8926fa949dc3809a81a5b6226127b9a7029d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^