Rejected Calls by agent in BCM 6.0.10.0 report, Is this an error?

Hi Experts,

My customer opened a ticket reporting an error in the SAP BCM report.

The agent rejected 513 calls in one day (See pic below), We know that this is possible, but by historical agent he has a good handling of calls, Could the agent having a bad day? or Could it be a bug in report?

So far in my analysis I didn´t find anything that would indicate an error, failure or even a database inconsistency.

Then, I need a help from you.

P.S: The BCM version is 6.0.10.0 and the report is the "Agent - Contacts handling".

Thank you in advance.

Rodrigo Lucas