Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ea83968d3f7abb5a730cad0b64363ac35ac2d2912090de3b1dc64572ba8640fb:14:28
   |
14 |                             let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^