Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> afa241e1cac7dfbea7bcdf96f17b564b188b7f7f10dbecc05f29f2d866e3f3d2:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^