Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c9c5ac6f05b786072919ce039a94aff2169f7af1d08b91b3ae6d920699bc7cc5:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^