Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 04a955f472a2da766601cc16cbbbb8d45d36e5eb9ae22b19d0dfe3adea9fa949:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^