Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3211d3f69f8c9c95f69ec4f3b9834066d90757678fe1b7e2b56f70cbe781c896:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^