Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c70f2d8cedb55950572bef528ff8c0cd42e9d5a6a9208558487e8e92b4215c35:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^