Important Conflicts with Joomla! SEF

Hi! I've a promlem with forum on my www. Earlyer forum workeв fine, but after a some time period it's broke. I can't open any categries or discuss topics. Google Chrome noticed me that there a lot of redirections. And support of my hosting can't help me in this problem. What can I do? Could u help me?

Database collation check: The collation of your table fields are correct

Legacy mode: Enabled | Joomla! SEF: Enabled | Joomla! SEF rewrite: Disabled | FTP layer: Disabled |

This message contains confidential information

htaccess: Missing | PHP environment: Max execution time: 30 seconds | Max execution memory: 28M | Max file upload: 5M

Joomla default template details : yoo_level | author: YOOtheme | version: 5.5.4 | creationdate: November 2010

Kunena default template details : Blue Eagle (default) | author: Kunena Team | version: 1.6.2 | creationdate: 2010-12-29

Kunena version detailled: Installed version: 1.6.2 | Build: 3894 | Version name: Team | Kunena detailled configuration:

Warning: Spoiler!

[th]Kunena config settings:[/th]

board_title	Kunena
board_offline	0
board_ofset	0.00
offline_message	<h2>The Forum is currently offline for maintenance.</h2> <div>Check back soon!</div>
enablerss	0
enablepdf	1
threads_per_page	20
messages_per_page	6
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
jmambot	0
disemoticons	0
template	default
showannouncement	1
avataroncat	0
catimagepath	category_images/
showchildcaticon	1
annmodid	62
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	0
showemail	0
showuserstats	1
showkarma	1
useredit	1
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useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	1
maxsubject	50
maxsig	300
regonly	0
changename	0
pubwrite	0
floodprotection	0
mailmod	0
mailadmin	0
captcha	0
mailfull	1
allowavatar	1
allowavatarupload	1
allowavatargallery	1
avatarquality	65
avatarsize	2048
allowimageupload	0
allowimageregupload	1
imageheight	800
imagewidth	800
imagesize	150
allowfileupload	0
allowfileregupload	1
filetypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2
filesize	120
showranking	1
rankimages	1
avatar_src	fb
fb_profile	fb
pm_component	no
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_name	1
userlist_username	1
userlist_posts	1
userlist_karma	1
userlist_email	0
userlist_usertype	0
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userlist_lastvisitdate	1
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rss_type	topic
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rss_included_categories
rss_excluded_categories
rss_specification	rss2.0
rss_allow_html	1
rss_author_format	name
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rss_word_count	0
rss_old_titles	1
rss_cache	900
fbdefaultpage	recent
default_sort	asc
alphauserpointsnumchars	0
sef	1
sefcats	0
sefutf8	1
showimgforguest	1
showfileforguest	1
pollnboptions	4
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polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	50
ordering_system	mesid
post_dateformat	ago
post_dateformat_hover	datetime
hide_ip	1
js_actstr_integration	0
imagetypes	jpg,jpeg,gif,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
imagequality	50
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hideuserprofileinfo	put_empty
integration_access	auto
integration_login	auto
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integration_profile	auto
integration_private	auto
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Third-party components: AlphaUserPoints: Disabled or not installed | CommunityBuilder: Disabled or not installed | Jomsocial: Disabled or not installed | UddeIm: Disabled or not installed

Third-party SEF components: sh404sef: Disabled or not installed | ARTIO JoomSEF: Disabled or not installed | AceSEF: Disabled or not installed

Plugins: System - Mootools12: Disabled | System - Mootools Upgrade: Disabled | JFirePHP: Disabled or not installed | Kunena Discuss: Disabled or not installed | Kunena Search: Disabled or not installed | My Kunena Forum Menu: Disabled or not installed | My Kunena Forum Posts: Disabled or not installed

Modules: Kunena Latest: Disabled or not installed | Kunena Stats: Disabled or not installed | Kunena Login: Disabled or not installed

Hello,

Start by disabling legacy mode if you can, there are some issues with redirection into some places, we are fixed some of this in K1.6.3