Question Delete items from front end not works at all

Hi! recently installed Kunena and everything is so fine, except if I try to delete (from front end) a posted item, from back end everything is fine, but from front end: buttons delete item, delete, block item NO works at all, just send me to a blank page trying to connect but never shows nothing.

The links with blank page are:
costaricaclown.com/foro/talleres/3-prueb...html?do=deletethread
costaricaclown.com/foro/talleres/3-prueb...1b5e22dfcc65f32f61=1

This links are shown when I try to delete or block any posted item...Change between them but nothing happens...

In fact I'm receiving a message with something like: you had entered information in an obsolete form, please reload the page and try again (received in spanish, site's language). Why this message??

Forum URL: costaricaclown.com/foro/categorias.html

Site's Info:
Joomla: 1.5.25
PHP: 5.3.8
Motools upgrade: desactivado
Kunena: 1.7.1
Comunnity Builder: 1.7

Configuration report:

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: 3000 seconds | Max execution memory: 768M | Max file upload: 360M

Joomla default template details : ca_cloudbase2_j15 | author: CloudAccess.net | version: 2.0.1 | creationdate: June 10, 2011

Kunena default template details : Blue Eagle (default) | author: Kunena Team | version: 1.7.1 | creationdate: 2011-11-16

Kunena version detailled: Installed version: 1.7.1 | Build: 5162 | Version name: UnderUret | Kunena detailled configuration:

Warning: Spoiler!

[th]Kunena config settings:[/th]

board_offline	0
board_ofset	0.00
enablerss	1
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	400
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	1
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
changename	0
pubwrite	1
floodprotection	0
mailmod	1
mailadmin	1
captcha	1
mailfull	1
allowavatar	1
allowavatarupload	1
allowavatargallery	1
avatarquality	100
avatarsize	800
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
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	1
latestcategory	0
showstats	0
showwhoisonline	0
showgenstats	0
showpopuserstats	1
popusercount	5
showpopsubjectstats	1
popsubjectcount	5
usernamechange	0
rules_infb	1
rules_cid	1
help_infb	1
help_cid	1
showspoilertag	1
showvideotag	1
showebaytag	0
trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	1
ebaylanguagecode	en-us
fbsessiontimeout	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
fbdefaultpage	recent
default_sort	asc
alphauserpointsnumchars	0
sef	1
sefcats	0
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
js_actstr_integration	0
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
integration_access	auto
integration_login	auto
integration_avatar	auto
integration_profile	auto
integration_private	auto
integration_activity	auto
boxghostmessage	0
userdeletetmessage	0
latestcategory_in	1
topicicons	1
onlineusers	0
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
activity_limit	0
show_list_time	720
show_session_type	0
show_session_starttime	0
userlist_allowed	1
userlist_count_users	1
enable_threaded_layouts	0
category_subscriptions	post
topic_subscriptions	every
pubprofile	0
thankyou_max	10
email_recipient_count	0
email_recipient_privacy	bcc
email_visible_address
captcha_post_limit	0

Third-party components: CommunityBuilder 1.4

Third-party SEF components: None

Plugins: System - Mootools Upgrade: Disabled | System - Mootools12: Disabled

Modules: None

Any help is really appreciated!!

According to your configuration report, you have CB 1.4 installed, not CB 1.7.

Please read the important advice about legacy mode . No Joomla 1.5 website these days should be running with the System - Legacy plugin enabled Kunena 1.7.1 has not been tested with legacy mode. You should disable legacy mode.

tuto wrote:

but from front end: buttons delete item, delete, block item NO works at all, just send me to a blank page trying to connect but never shows nothing.

I think you're saying that the buttons appear but they are not working? Is that correct? I don't understand "block item" :S

See You have entered information to an obsolete form. Please reload page and try again! Is this the error message that you're getting? Does that topic help to explain things?

I suspect that you've got a problem with the way you've setup Joomla SEO. I can't see any messages posted on your website, so I really don't know anything more than what you've written.

Hi Sozzled!! Thank you very much for your help! I already resolved the issue, it was related to Joomla SEO, I turned off the URL suffixes on joomla SEO and that´s it...

Both errors was related to Joomla SEO Configuration...

Legacy mode is enabled and Kunena is working so fine, I think they are compatible, but if I have any issue again, I gonna disable it.

URL suffixes not affect the google positioning, right?
Is better if disable legacy mode??

Thank you very, very much for your help!

tuto wrote: Legacy mode is enabled and Kunena is working so fine, I think they are compatible, but if I have any issue again, I gonna disable it.

Legacy mode is totally unnecessary. Legacy mode was never fully supported or guaranteed by Joomla. Please read Legacy mode to understand more about it.

Kunena is not tested on J! 1.5 systems running legacy mode. Kunena will never be tested on J! 1.5 systems running with the System - Legacy plugin enabled. It's not because we don't have time to test Kunena on J! 1.5 systems with the System - Legacy plugin enabled; the reason is because the System - Legacy plugin is not fully supported or guaranteed to work by Joomla.

URL suffixes don't make the any difference as far as search engines are concerned.

One more thank you Sozzled!!! I already unabled legacy plugin and will not worry about URL suffixes as you said.

Thank you very much for all the help that you offer us and I wish you a Great & Happy New Year

"Keep smiling on difficult moments and everything would seems easy"