Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 220c77c8b61a270f125062b7c02e6e93a89f9c51be9f9b76282c29e9d5c8e44f:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^