Firewall Analyzer is not collecting and showing traffic data

Firewall Analyzer is not collecting and showing traffic data

I'm currently testing the Firewall Analyzer 5 with evaluate version running firewall log collection for Cisco ASA for among 8 days until today. The syslog files are all collected except the traffic data, it says data is available on 3 sep and tell me to adjust the calendar. (only day 1-3 have the data, and loss from day 4 to 8)
please provide me some advices.

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