Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3f21de40cde8920eec1a51b714f9d906e492fd3ece1f46a8f687c407542b17e3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^