Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ae746d8d89102a1f76590c9cfa48401d01067feb9af0a9a6e51938d9a477e1a3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^