Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 3c8f662b489ddea60d4cfa8db7132579b684f3a3dd266d3d628fa06c6434200d:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^