Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> abaf1a108177ac3a47f6c58b3d461cf60d3e1428f6bbc1955f90b661185fc2a3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^