Question Registered users doesn't goes in "Registered" user group of Joomla

Hello,

When someone register into forum of my website, the user goes in "Madwax" usergroup instead of going in "Registered". I want them to go in "Registered" user group.

Website is www.madwax.com.au

Another question is after registering into forum, users get this error "Error loading Compononent: com_discussions,1".

Any help would be much appreciated.

Thank you!!

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Kunena menu details:

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ID	Name	Menutype	Link	Path
331	Forum	kunenamenu	view=home&defaultmenu=332	forum
332	Index	kunenamenu	view=category&layout=list&catid=0	forum/index
333	Recent Topics	kunenamenu	view=topics&mode=replies	forum/recent
334	New Topic	kunenamenu	view=topic&layout=create	forum/newtopic
335	No Replies	kunenamenu	view=topics&mode=noreplies	forum/noreplies
336	My Topics	kunenamenu	view=topics&layout=user&mode=default	forum/mylatest
337	Profile	kunenamenu	view=user	forum/profile
338	Help	kunenamenu	view=misc	forum/help
339	Search	kunenamenu	view=search	forum/search
340	Forum	mainmenu	Itemid=331	kunena-2013-02-05

Joomla default template details : madwax | author: WOEXX | version: 2.7 | creationdate: 15 April 2012

Kunena default template details : Blue Eagle 2.0 | author: Kunena Team | version: 2.0.4 | creationdate: 2013-01-18

Kunena version detailed: Kunena 2.0.4 | 2013-01-18 [ Pharmacopoeia ]
| Kunena detailed configuration:

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Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	20
messages_per_page	6
messages_per_page_search	15
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rss_feedburner_url

| Kunena integration settings:

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Kunena - AlphaUserPoints Disabled
Kunena - Community Builder Disabled
Kunena - Gravatar Disabled
Kunena - JomSocial Disabled
Kunena - Joomla Enabled: access=1 login=1
Kunena - Kunena Enabled: avatar=1 profile=1
Kunena - UddeIM Disabled

| Joomla! detailed language files installed:

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Joomla! languages installed:
en-GB	English (United Kingdom)

Third-party components: None

Third-party SEF components: None

Plugins: None

Modules: None

Do you use madwax usergroup? if not delete it. or move it under Registered

Also read this docs.joomla.org/J2.5:Access_Control_List_Tutorial