Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 6707d3b2ffda805236e9e7453d1e40f8a39ee3a8efec0bab12a7aa236143f07b:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^