Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 10900d7288657750e624b1b8e8fecea1f1ac2b6590dd057247fddcbf703b0c05:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^