Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 26ca747d51d22731e15e1ca0442f55af8e0122a55cd0dd2e929a9915d854a25a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^