Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 1f519de2a872e09c5691200fa00f1c86b5b55ea83f014329649427818dbecbd5:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^