Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> a52547b4d1938ae5be5e6a70283423ab1f872d56fc06dccb1612068375782824:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^