Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> ad6df330c3f1f39e6827062129988b969f1b6a4712ed07ee4ebfd4604c829bd3:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^