Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> af64319d2a18d5f40dc90a7aec5cc416b4f6fec08bd9a20689cfb299eed1374d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^