Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 4e9abd9d3f720614bbb736288e16cd2be508801eeff3f9e1d1eeb93d5cb3514c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^