Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 2ec68f76541032f2feb0164d8d771874dd587f2dc1f9bf9d6d71261bc7c782a8:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^