Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> c6a6d7dc098248708515131d06b920cc7d8cd168453640739d3b82fbfa661ea7:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^