Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ef5465a21eeb1cb1685d7d3480a6514157ec76f902d807ad7522b07eab4b980e:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^