Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> edbcb89a7ea4015ccf34bb284595421f3d1781fb870f79d5deac310ba8d38487:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^