Different functions of AA may fail and report an error similar to the following:
"Error occurred while writing the audit entry to the database. See Inner exception for details. Could not allocate space for object <tableName> in database <AA DBName> because the PRIMARY filegroup is full. Create disk space by deleting unneeded files, dropping objects in the filegroup, adding additional files to the filegroup, or setting autogrowth on for existing files in the filegroup"
Check to see if the drive where the AA database is hosted has run out of freespace. if the Drive has sufficient freespace, check to ensure the database and/or log files has not been set with restricted growth and reached the limit:
If you are using SQL Express, please note, databases hosted with SQL Express have a maximum size of 10GBs. This limit is set my SQL Express and cannot be changed.