Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 64e0eda53f5c96fec40a0e7470ba698b2d1816f05d335192a500a3c807a1d4c3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^