Proftpd problem

gdnet@server:~$ sudo proftpd -nd6
 - mod_ctrls/0.9.4: binding ctrls socket to '/var/run/proftpd/proftpd.sock'
 - parsing '/etc/proftpd/proftpd.conf' configuration
 - parsing '/etc/proftpd/modules.conf' configuration
 - dispatching auth request "name2uid" to module mod_auth_file
 - dispatching auth request "name2uid" to module mod_auth_unix
 - dispatching auth request "name2uid" to module mod_auth_file
 - dispatching auth request "name2uid" to module mod_auth_unix
 - mod_tls/2.1.1: using OpenSSL 0.9.8a 11 Oct 2005
 - DenyFilter: compiling deny regex '\*.*/'
 - dispatching auth request "getpwnam" to module mod_radius
 - dispatching auth request "getpwnam" to module mod_ldap
 - dispatching auth request "getpwnam" to module mod_sql
 - dispatching auth request "getpwnam" to module mod_auth_file
 - dispatching auth request "getpwnam" to module mod_auth_unix
 - dispatching auth request "getgrnam" to module mod_radius
 - dispatching auth request "getgrnam" to module mod_ldap
 - dispatching auth request "getgrnam" to module mod_sql
 - dispatching auth request "getgrnam" to module mod_auth_file
 - dispatching auth request "getgrnam" to module mod_auth_unix
 - <IfModule>: using 'mod_tls.c' section at line 65
 - <IfModule>: skipping 'mod_quota.c' section at line 69
 - <IfModule>: skipping 'mod_ratio.c' section at line 73
 - <IfModule>: using 'mod_delay.c' section at line 81
 - <IfModule>: using 'mod_ctrls.c' section at line 85
 - mod_ctrls/0.9.4: closing ctrls socket '/var/run/proftpd/proftpd.sock' (3)
 - <IfModule>: skipping 'mod_ctrls_admin.c' section at line 93
server.gdnet.com.ar -
server.gdnet.com.ar - Config for GDNet:
server.gdnet.com.ar - DeferWelcome
server.gdnet.com.ar - DefaultServer
server.gdnet.com.ar - ShowSymlinks
server.gdnet.com.ar - TimeoutNoTransfer
server.gdnet.com.ar - TimeoutStalled
server.gdnet.com.ar - TimeoutIdle
server.gdnet.com.ar - DisplayLogin
server.gdnet.com.ar - DisplayFirstChdir
server.gdnet.com.ar - ListOptions
server.gdnet.com.ar - DenyFilter
server.gdnet.com.ar - UserID
server.gdnet.com.ar - UserName
server.gdnet.com.ar - GroupID
server.gdnet.com.ar - GroupName
server.gdnet.com.ar - Umask
server.gdnet.com.ar - DirUmask
server.gdnet.com.ar - AllowOverwrite
server.gdnet.com.ar - TransferLog
server.gdnet.com.ar - TLSEngine
server.gdnet.com.ar - DelayEngine
server.gdnet.com.ar - SQLAuthTypes
server.gdnet.com.ar - SQLAuthenticate
server.gdnet.com.ar - SQLConnectInfo
server.gdnet.com.ar - SQLUserTable
server.gdnet.com.ar - SQLUsernameField
server.gdnet.com.ar - SQLPasswordField
server.gdnet.com.ar - SQLUidField
server.gdnet.com.ar - SQLGidField
server.gdnet.com.ar - SQLHomedirField
server.gdnet.com.ar - SQLShellField
server.gdnet.com.ar - SQLGroupTable
server.gdnet.com.ar - SQLGroupnameField
server.gdnet.com.ar - SQLGroupGIDField
server.gdnet.com.ar - SQLGroupMembersField
server.gdnet.com.ar - SQLMinID
server.gdnet.com.ar - QuotaEngine
server.gdnet.com.ar - QuotaShowQuotas
server.gdnet.com.ar - QuotaDisplayUnits
server.gdnet.com.ar - SQLNamedQuery_get-quota-limit
server.gdnet.com.ar - SQLNamedQuery_get-quota-tally
server.gdnet.com.ar - SQLNamedQuery_update-quota-tally
server.gdnet.com.ar - SQLNamedQuery_insert-quota-tally
server.gdnet.com.ar - QuotaLock
server.gdnet.com.ar - QuotaLimitTable
server.gdnet.com.ar - QuotaTallyTable
server.gdnet.com.ar - mod_ctrls/0.9.4: binding ctrls socket to '/var/run/proftpd/proftpd.sock'
server.gdnet.com.ar - dispatching auth request "getgroups" to module mod_radius
server.gdnet.com.ar - dispatching auth request "getgroups" to module mod_ldap
server.gdnet.com.ar - dispatching auth request "getgroups" to module mod_sql
server.gdnet.com.ar - dispatching auth request "getgroups" to module mod_auth_file
server.gdnet.com.ar - dispatching auth request "getgroups" to module mod_auth_unix
server.gdnet.com.ar - error setting IPV6_V6ONLY: Protocol not available
server.gdnet.com.ar - ProFTPD 1.3.0 (stable) (built jue oct 19 14:45:18 ART 2006) standalone mode STARTUP
server.gdnet.com.ar (190-48-107-151.speedy.com.ar[::ffff:190.48.107.151]) - FTP session requested from unknown class
server.gdnet.com.ar (190-48-107-151.speedy.com.ar[::ffff:190.48.107.151]) - FTP session closed.