Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 7a2d86f2915c054a05f8a28f011b1328315e06cda7ab677b42bb9cd49aceb96a:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^