Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 5f82024c7dd6cfb901217e9e151d679ca17dddadcdf4b4c886f12d826c22349d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^