Does it make it sense to use dialup admin for administration if the freeRADIUS server uses the active directory for authentification?

Because I have the following errors in the interface:

Warning: asort() expects parameter 1 to be array, null given in /usr/share/freeradius-dialupadmin/htdocs/accounting.php3 on line 47

Warning: mktime() expects parameter 1 to be long, string given in /usr/share/freeradius-dialupadmin/lib/functions.php3 on line 95

Warning: mktime() expects parameter 1 to be long, string given in /usr/share/freeradius-dialupadmin/lib/functions.php3 on line 95

DEBUG(SQL,MYSQL DRIVER): Query: SELECT COUNT(radacctid) AS res_1,sum(acctsessiontime) AS res_2,sum(acctoutputoctets) AS res_3 FROM radacct WHERE username LIKE '%' AND acctstoptime >= '2008-10-11 00:00:00' AND acctstoptime <= '2008-10-11 23:59:59' ;
Database query failed: Table 'radius.radacct' doesn't exist
DEBUG(SQL,MYSQL DRIVER): Query: SELECT COUNT(radacctid) AS res_1,sum(acctsessiontime) AS res_2,sum(acctoutputoctets) AS res_3 FROM radacct WHERE username LIKE '%' AND acctstoptime >= '2008-10-03 00:00:00' AND acctstoptime <= '2008-10-03 23:59:59' ;
Database query failed: Table 'radius.radacct' doesn't exist

How should I fix them?
Thanks.

F. Niedernolte