Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b4afa95de88a4b5ea4788b01caa43a694ff183d03d2ad0303b957e21f7bdb2ac:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^