Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0effc39aa4f3e42a755f92231d61b6cf21be31df0cb9cb61d5f5fa30a9298f0e:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^