Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 71a01b219289bfdd342d8bb105b3a8372e46539e26dd2b071b1c447549b99f16:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^