Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3e27d20533a7839c0c5b81851cc99b27cb7711f34642920f2aa0293dab7a2957:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^