Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 81ca80e1f9e92543408e2d35f495f4f4e7c1ad4d8ea608da1658339137294c40:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^