Bug J! 1.5 (legacy mode) and Kunena Discuss 2.0.4: problems allowing guests to comment

I had a problem with spam.
I upgrade to Joomla 1.5.26 and Kunena 2,04
I enabled comments for guests. It does not work.
Comments for guests can not be added.

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

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

This message contains confidential information

htaccess: Exists | PHP environment: Max execution time: 20 seconds | Max execution memory: 80M | Max file upload: 12M

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path
110	Fórum	kunenamenu	view=home&defaultmenu=112	forum
33	Fórum	topmenu	view=category&catid=0&layout=list	forum-
89	Fórum	mainmenu	Itemid=110	forum
111	Úvod	kunenamenu	view=category&layout=list	forum/index
112	Nové témy	kunenamenu	view=topics&layout=default&mode=replies	forum/recent
113	Nová téma	kunenamenu	view=topic&catid=0&layout=create	forum/newtopic
114	Bez odpovede	kunenamenu	view=topics&layout=default&mode=noreplies	forum/noreplies
115	Moje témy	kunenamenu	view=topics&layout=user&mode=default	forum/mylatest
116	Profil	kunenamenu	view=user	forum/profile
117	Pravidla	kunenamenu	view=misc	forum/rules
118	Pomoc	kunenamenu	view=misc	forum/help
119	Hľadať	kunenamenu	view=search	forum/search

Joomla default template details : krajinou | author: Dali | version: 1.0 | creationdate: 2010-10-01

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:

Warning: Spoiler!

Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	20
messages_per_page	6
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
disemoticons	0
template	blue_eagle
showannouncement	1
avataroncat	0
catimagepath	category_images
showchildcaticon	1
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	0
showemail	0
showuserstats	1
showkarma	1
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	1
maxsubject	50
maxsig	300
regonly	0
pubwrite	1
floodprotection	0
mailmod	0
mailadmin	0
captcha	1
mailfull	1
allowavatarupload	1
allowavatargallery	1
avatarquality	75
avatarsize	2048
imageheight	800
imagewidth	800
imagesize	150
filetypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2
filesize	120
showranking	1
rankimages	1
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_name	1
userlist_posts	1
userlist_karma	1
userlist_email	0
userlist_usertype	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	1
latestcategory	0
showstats	1
showwhoisonline	1
showgenstats	1
showpopuserstats	1
popusercount	5
showpopsubjectstats	1
popsubjectcount	5
usernamechange	0
showspoilertag	1
showvideotag	1
showebaytag	1
trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	1
ebaylanguagecode	en-us
sessiontimeout	1800
highlightcode	0
rss_type	topic
rss_timelimit	month
rss_limit	100
rss_included_categories
rss_excluded_categories
rss_specification	rss2.0
rss_allow_html	1
rss_author_format	name
rss_author_in_title	1
rss_word_count	0
rss_old_titles	1
rss_cache	900
defaultpage	recent
default_sort	asc
sef	1
sefutf8	0
showimgforguest	1
showfileforguest	1
pollnboptions	4
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	50
ordering_system	mesid
post_dateformat	ago
post_dateformat_hover	datetime
hide_ip	1
imagetypes	jpg,jpeg,gif,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
imagequality	50
thumbheight	32
thumbwidth	32
hideuserprofileinfo	put_empty
boxghostmessage	0
userdeletetmessage	0
latestcategory_in	1
topicicons	1
debug	0
catsautosubscribed	0
showbannedreason	0
version_check	1
showthankyou	1
showpopthankyoustats	1
popthankscount	5
mod_see_deleted	0
bbcode_img_secure	text
listcat_show_moderators	1
lightbox	1
show_list_time	720
show_session_type	0
show_session_starttime	0
userlist_allowed	0
userlist_count_users	1
enable_threaded_layouts	0
category_subscriptions	post
topic_subscriptions	every
pubprofile	1
thankyou_max	10
email_recipient_count	0
email_recipient_privacy	bcc
captcha_post_limit	0
keywords	0
userkeywords	0
image_upload	registered
file_upload	registered
topic_layout	flat
time_to_create_page	1
show_imgfiles_manage_profile	1
hold_newusers_posts	0
hold_guest_posts	0
attachment_limit	8
pickup_category	0
article_display	intro
send_emails	1
fallback_english	1
cache	1
cache_time	60
iptracking	1
rss_feedburner_url
enablepdf	1
jmambot	1
annmodid	62
changename	0
userlist_username	1
rules_infb	1
help_infb	1
onlineusers	1

| Kunena integration settings:

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Kunena - AlphaUserPoints Disabled
Kunena - Community Builder Enabled: access=1 login=1 activity=1 avatar=1 profile=1 private=1
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:
cs-CZ	Čeština (Česká republika)
en-GB	English (United Kingdom)
sk-SK	Slovenčina (Slovenská republika)

Third-party components: CommunityBuilder 1.7.1 | UddeIM 2.2

Third-party SEF components: None

Plugins: Content - Kunena Discuss 2.0.4

Modules: Kunena Latest 2.0.4

Hello,

Legacy mode shouldn't be used with Kunena, so please disable it.

Can-you put here please a screenshot of configuration settings of Kunena discuss plugin ?

Unfortunately, I can not Legacy off, then my site is not working.

See Legacy mode in the Wiki.

J! 1.5 (legacy mode) was never supported by Joomla. K 2.0.4 is not tested with J 1.5 (legacy mode). We do not respond to questions posted on this forum that concern sites running J! 1.5 with the System - Legacy plugin enabled. You cannot use K 2.0.4 with CB 1.7.1 either.

Did you search this forum for other topics that may help to explain problems you seem to be having with guest users and Kunena Discuss?