Question Fatal Error (insufficient memory)

Just upgraded to Kunena 3.0.0.
But after upgrading i'm receiving errors like this and the only way to get rid of them is to disable my Kunena forum.

Fatal error: Allowed memory size of 268435456 bytes exhausted (tried to allocate 32 bytes) in /home/elektro4/public_html/libraries/joomla/database/database/mysql.php on line 712

Warning: Cannot modify header information - headers already sent by (output started at /home/elektro4/public_html/libraries/joomla/database/database/mysql.php:712) in /home/elektro4/public_html/libraries/kunena/error.php on line 133

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: Exists | PHP environment: Max execution time: 30 seconds | Max execution memory: 256M | Max file upload: 200M

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path
610	Forum	kunenamenu	view=home&defaultmenu=611	forum
611	Forside	kunenamenu	view=category&layout=list&catid=0	forum/index
612	Seneste tråde	kunenamenu	view=topics&mode=replies	forum/seneste-trade
613	Ny tråd	kunenamenu	view=topic&layout=create&catid=	forum/ny-trad
615	Mine tråde	kunenamenu	view=topics&layout=user&mode=default	forum/mine-trade
616	Min Profil	kunenamenu	view=user	forum/min-profil
1095	Marked	kunenamenu	view=category&catid=41	forum/marked
1096	Køb	kunenamenu	view=category&catid=42	forum/marked/kob
1097	Salg	kunenamenu	view=category&catid=43	forum/marked/salg
1098	Bytte	kunenamenu	view=category&catid=44	forum/marked/bytte
1099	Vurdering	kunenamenu	view=category&catid=95	forum/marked/vurdering
617	Hjælp	kunenamenu	view=misc	forum/hjaelp
618	Søg	kunenamenu	view=search	forum/sog
614	No Replies	kunenamenu	view=topics&mode=noreplies	forum/noreplies
619	Forum	top	view=topics&mode=replies	2012-07-07-19-43-09
665	Min Profil	top	view=user	min-profil
667	Rediger profil	top	view=user&layout=edit	min-profil/rediger-profil

Joomla default template details : Nytdesign3 | author: Kasper Schuster Haaning Hansen | version: 1.0 | creationdate: Unknown

Kunena default template details : Blue Eagle 2.0 | author: Kunena Team | version: 3.0.0 | creationdate: 2013-05-15

Kunena version detailed: Kunena 3.0.0 | 2013-05-15 [ Wanga ]
| Kunena detailed configuration:

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Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	20
messages_per_page	10
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
disemoticons	0
template	blue_eagle
showannouncement	0
avataroncat	1
catimagepath	category_images
showchildcaticon	1
rtewidth	900
rteheight	300
enableforumjump	1
reportmsg	0
username	1
askemail	1
showemail	0
showuserstats	0
showkarma	0
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	1
maxsubject	70
maxsig	300
regonly	0
pubwrite	0
floodprotection	0
mailmod	-1
mailadmin	-1
captcha	0
mailfull	1
allowavatarupload	1
allowavatargallery	1
avatarquality	100
avatarsize	512
imageheight	1080
imagewidth	1920
imagesize	2048
filetypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2,rar
filesize	2048
showranking	1
rankimages	1
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_name	0
userlist_posts	1
userlist_karma	0
userlist_email	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	1
latestcategory	0
showstats	0
showwhoisonline	1
showgenstats	0
showpopuserstats	0
popusercount	5
showpopsubjectstats	1
popsubjectcount	5
usernamechange	0
showspoilertag	0
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	58
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	1800
defaultpage	recent
default_sort	asc
sef	1
showimgforguest	1
showfileforguest	0
pollnboptions	20
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	300
ordering_system	replyid
post_dateformat	datetime_today
post_dateformat_hover	ago
hide_ip	1
imagetypes	jpg,jpeg,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/png
imagequality	80
thumbheight	54
thumbwidth	96
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	0
lightbox	1
show_list_time	8760
show_session_type	0
show_session_starttime	10
userlist_allowed	1
userlist_count_users	1
enable_threaded_layouts	1
category_subscriptions	post
topic_subscriptions	every
pubprofile	1
thankyou_max	99
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	10
pickup_category	0
article_display	intro
send_emails	1
fallback_english	1
cache	1
cache_time	300
iptracking	1
rss_feedburner_url
autolink	1
access_component	0
userlist_usertype	1
sefutf8	0
changename	0

| Kunena integration settings:

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Kunena - AlphaUserPoints Enabled: activity=1 avatar=1 profile=1 activity_points_limit=0
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 Enabled: private=1

| Joomla! detailed language files installed:

Warning: Spoiler!

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

Third-party components: UddeIM 3.0

Third-party SEF components: None

Plugins: JomSocial - My Kunena Forum Menu 2.0.4 | JomSocial - My Kunena Forum Posts 2.0.1

Modules: None

Disable all the settings in the Kunena - AlphaUserPoints integration plugin (you do not have AUP installed and so you do not need it).

Uninstall the JomSocial - My Kunena Forum Menu 2.0.4 and JomSocial - My Kunena Forum Posts 2.0.1 plugins (these require JomSocial to be installed and you do not have this component installed).

Try to simplify your Joomla menu. See Kunena Menu issues in the forum.

Last of all, see Improving Kunena performance for assistance with your fatal error.

I've tried that. Just remove everything with kunena in it from my phpmyadmin - didn't help. Did it again and installed kunena 2.0.3 - didn't work either, tried 2.0.4 - without any luck.

After all that i began disabling a plugin one by one, which didn't make any difference at all neither.

At the moment i'm out of ideas, and can think of anything else i can do.

It looks like you have removed Kunena from you site and you are running Agora Pro. I assume that you do not require our assistance. This topic can now be closed.

I would love to use kunena, but i had to do something to keep my forum running until i've found a solution to the problem.

The simple way to determine what was causing the problems you were having is to use the " When all else fails, try this " approach. It's simple.

Create a test site, away from your production site, install only J! 2.5.11 and K 3.0.0 and nothing else. Make no changes to configuration settings and see if you still have these "insufficient memory" problems. In most cases you will find that it is not Kunena that caused the "insufficient memory" problem but something else you have running with Kunena on your site. When you identify what is that is stealing the memory away from Kunena then you are well on the way to resolving your problem on you production site.

Good luck.