Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5c91d371c50f81834feadd2e19fa19cfc53ee6f4044c3f3f35eab1f78cd2e46d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^