Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a97b6f3184b77c094cd085930a6946d2330802a64df041ec3641ab153e87f0cb:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^