Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d1b41875da80c997a66a426f9ac3c58626f169d8c9ec9c88ba2b1d940d974dc1:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^