Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 180c649f7b8ade52b75b93b94d04a042cd0c2d844e43a7cc7eba4714ba9fc798:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^