Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ac7fb50168186f256aa590a570bd007fc127efeff95920de0e21ade6c1d9a3cb:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^