Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a3a79f8b419d50d55c2c7c02e3e0203c51f88c147e4d4ae12395f3d82ab8c111:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^