Hello,
The thing is that to avoid growing of the database file size, the built-in database stores log records only for a limited number of days. For information on how to check, how many days your built-in database stores log records, see the following help article: http://www.adaxes.com/help/?Logging.Edi ... tings.html.
So, most probably, the log records for the whole year are simply not available.
Did you perform regular backups of Adaxes configuration?