Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 72c047945bab85426f51c73fac43e40bae40e10a3e90798beface761d2522c65:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^