Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 0f53b0f5970376506e88a78b7bd00ccaf1ffb44472d04788c3dcc5762f6afc80:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^