Unable to create accounting.

Hi,
Am unable to create accounting for the AP invoice. It's not recurring issue.

1. Invoice prepared
2. Account created.
3. Cancelled.
4. Account created.

Now no Idea what user done a mistake.

Here I have two Invoice lines for one line there are two distributions.
One distribution line Never Validated & Processed.
Another distribution line Validated & Unprocessed.

In the same way another line also.

At header level Validated status: Cancelled.
Account: Partial.

Need advise.

Thanks,
Kishore