Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> db30126a238ed64ccfa2ab605fbdfe1729f055ae764d5fe2ad1c1e735d12948e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^