Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> cac251d761b53a6dac79915e8479507c4c306bf18eb10fadd355de30c67917c9:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^