Question Kunena System Plugin conflict with Joomla! 3.1.4

If you update Joomla! to 3.1.4 version, than backend show a blank page. Source of problem the System Kunena Forum Plugin is incompatible with a new Joomla! release.

There are some issues with Joomla patch 3.1.4 unrelated to Kunena - see forum.joomla.org/viewtopic.php?f=728&t=811158

Please post your full configuration report for Kunena if this issue still persist.

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

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

This message contains confidential information

htaccess: Missing | PHP environment: Max execution time: 30 seconds | Max execution memory: 128M | Max file upload: 2M

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path
703	Fórum	kunenamenu	view=home&defaultmenu=704	fórum
704	Kategóriák	kunenamenu	view=category&layout=list	fórum/kategóriák
705	Friss témák	kunenamenu	view=topics&mode=replies	fórum/friss-témák
706	Új téma	kunenamenu	view=topic&layout=create&catid=	fórum/új-téma
707	Megválaszolatlan	kunenamenu	view=topics&mode=noreplies	fórum/megválaszolatlan
708	Saját témáim	kunenamenu	view=topics&layout=user&mode=default&modetype=	fórum/saját-témáim
709	Profilom	kunenamenu	view=user	fórum/profilom
710	Súgó	kunenamenu	view=misc	fórum/súgó
376	Szabályzat	kunenamenu	view=misc	fórum/szabályzat
711	Keresés	kunenamenu	view=search	fórum/keresés

Joomla default template details : rt_hexeris | author: RocketTheme, LLC | version: 1.1 | creationdate: Unknown

Kunena default template details : Blue Eagle 2.0 | author: Kunena Team | version: 3.0.1 | creationdate: 2013-06-29

Kunena version detailed: Kunena 3.0.1 | 2013-06-29 [ Noordwijkerhout ]
| 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	1
catimagepath	category_images/
showchildcaticon	1
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	0
showemail	0
showuserstats	1
showkarma	0
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	0
allowfavorites	1
maxsubject	125
maxsig	300
regonly	0
pubwrite	0
floodprotection	0
mailmod	0
mailadmin	0
captcha	0
mailfull	1
allowavatarupload	1
allowavatargallery	1
avatarquality	80
avatarsize	2048
imageheight	800
imagewidth	800
imagesize	300
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	0
userlist_email	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	1
latestcategory
showstats	1
showwhoisonline	1
showgenstats	1
showpopuserstats	1
popusercount	5
showpopsubjectstats	1
popsubjectcount	5
usernamechange	1
showspoilertag	1
showvideotag	1
showebaytag	0
trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	0
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
showimgforguest	1
showfileforguest	1
pollnboptions	4
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	24:00:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	50
ordering_system	replyid
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	1
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	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
captcha_post_limit	0
keywords	0
userkeywords	0
image_upload	registered
file_upload	registered
topic_layout	flat
time_to_create_page	0
show_imgfiles_manage_profile	1
hold_newusers_posts	0
hold_guest_posts	0
attachment_limit	8
pickup_category	1
article_display	intro
send_emails	1
fallback_english	1
cache	1
cache_time	60
iptracking	1
rss_feedburner_url
autolink	1
access_component	0
userlist_usertype	0
sefutf8	0
changename	0
enablepdf	0
jmambot	1
annmodid	62
userlist_username	1
rules_infb	1
help_infb	1
onlineusers	1

| 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:

Warning: Spoiler!

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

Third-party components: None

Third-party SEF components: None

Plugins: Search - Kunena Search 3.0.1 | Content - Kunena Discuss 3.0.1

Modules: Kunena Latest 3.0.1 | Kunena Search 3.0.1

Perhaps this information posted on the Joomla website will assist you?

J3.1:Extensions Broken in 3.1.4

Unfortunately, it doesn't help.

I just tried to reproduce the issue, but all works just great for me. Kunena system plugin does nothing else than register our library and some defines to Joomla in the URL from your screen shot. So it's unlikely that the System - Kunena plugin causes page not to load.

Did you look into Apache error logs? You should have fatal error describing the issue in there.

Updating to Joomla 3.1.5 fixes this issue and the recent security breach in Joomla.

The best way is to follow that : www.kunena.org/docs/HTTP_500_Internal_Server_Error , to get the error message behind the white page else we can't guess what's happen

As there has been no follow-up on this matter from Balázs, we assume that matter has been satisfactorily resolved.