Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 155820c64389fdf94ec62e434043533acad7b524a5d17526707ec2d1fc3be000:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^