Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 981148b81afb9cb6e1efba0619ba5fd0a81604e01f55b0cb918c5c6bf014aacf:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^