Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a425a5d0de7eb9ba626dacfe808b6171f56d4965ceab900f9b37d132ce25ba4e:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^