Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1949ac7cd3d93892d340daa4cdf610c1120495949f411f2f6ba5aa9b9d28bc39:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^