Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 69289d6c957a433d35482e19269ecc4eefeed61d3e2eb1eade1acbbcaecfe52f:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^