Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 90ebff85752e162d08e2dae3f81471efafd8f9fa32a21d900de5a51aa8c1add8:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^