Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a1a67ba21124378ef6c5f8c24c0334dd7d3d282c6888cdbb1dcfc080810cc63d:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^