Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 285b9d20cb9820a870b6d947504b44c790babc25a7dc1da8a53005a0b2e52803:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^