Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 19473a1e275e129c1e7b2bca02f108417a0e58e67a9e1e420aa292a68d99078e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^