Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b062da7f40148a52cf4f47dd295c18146a9b3f17081dbaa067927a825cdca827:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^