Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> f74a99b1f971c14f947c9a2f10a2624383b92d8ce6df88f39757ad7efdf20b5c:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^