Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1fc6783a8b43f818ef89a4fb68451152ae302e6c4b1faa48bac5d1955197c7ab:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^