Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> d030678a302aa17f087d4b94878d1a25f79a1167f221cb497aa59d3814ba7cde:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^