Usually one would start by verifying the configuration file for errors
Originally Posted by jimford
followed by inspection
aide -c /etc/aide/aide.conf --config-check
if any show up. 'man aide.conf' explains the database, database_out and database_new directives, 'man aide', the "--compare" switch, shows you how to use the database and database_new directives and running
grep iv ^# /etc/aide/aide.conf|grep .
shows you what you have configured right now. Your database_out doesn't match your database so each time you --init you have to rename it. Good practice but a bit tedious.
grep database_ /etc/aide/aide.conf
*FWIW (I don't know anything about your intended use or requirements) have a look at Samhain and compare features to see if what it offers over AIDE would suit you better (or not).