Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0cd4f44bce8638ecef32b5ca5e48b23611656f7d03fb9f75ac6f0a46383a0901:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^