Question "The forum is currently offline for maintenance"

My installation "was" working fine. I did move a few months back. Because of some changes I know there was no activity in the forum, and I was busy with other projects. But today I changed to remove Akeeba Subscriptions as the "front" for Kunena, and changed the menu item to one that goes directly to Kunena.

I checked the configuration, assured that the menu item is published, along with many other settings that may cause the problem.
But I keep getting The Forum is currently offline for maintenance.
It's not.
I've checked 3 times.
I even reinstalled the 3.0 version, then the 3.0.6 - all to no avail.

Here is the report:

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: 64M

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path
131	Community Forum	mainmenu	view=category&catid=1&layout=list	community-forum
154	Forum	kunenamenu	view=home&defaultmenu=156	forum
155	Index	kunenamenu	view=category&catid=0&layout=list	forum/index
156	Recent Topics	kunenamenu	view=topics&layout=default&mode=replies	forum/recent
157	New Topic	kunenamenu	view=topic&catid=0&layout=create	forum/newtopic
158	No Replies	kunenamenu	view=topics&layout=default&mode=noreplies	forum/noreplies
159	My Topics	kunenamenu	view=topics&layout=user&mode=default	forum/mylatest
160	Profile	kunenamenu	view=user	forum/profile
161	Rules	kunenamenu	view=misc	forum/rules
162	Help	kunenamenu	view=misc	forum/help
163	Search	kunenamenu	view=search	forum/search
217	HELP	top-menu	view=home&defaultmenu=154	community-forum-registration

Joomla default template details : ltcreations2012 | author: | version: 1.0 | creationdate: Unknown

Kunena default template details : Blue Eagle | author: Kunena Team | version: 3.0.6 | creationdate: 2014-07-28

Kunena version detailed: Kunena 3.0.6 | 2014-07-28 [ Tala ]
| Kunena detailed configuration:

Warning: Spoiler!

Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	10
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	1
showemail	0
showuserstats	1
showkarma	0
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	1
maxsubject	50
maxsig	300
regonly	1
pubwrite	0
floodprotection	0
mailmod	0
mailadmin	1
captcha	1
mailfull	1
allowavatarupload	1
allowavatargallery	1
avatarquality	65
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	0
userlist_posts	0
userlist_karma	0
userlist_email	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	0
latestcategory	0
showstats	0
showwhoisonline	1
showgenstats	1
showpopuserstats	0
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	900
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	0
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	0
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	1
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	threaded
time_to_create_page	1
show_imgfiles_manage_profile	1
hold_newusers_posts	0
hold_guest_posts	1
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
autolink	1
access_component	1
statslink_allowed	1
superadmin_userlist	0
userlist_usertype	0
sefutf8	0
changename	1
enablepdf	0
jmambot	1
annmodid	62
userlist_username	1
rules_infb	1
help_infb	1
onlineusers	1

| Kunena integration settings:

Warning: Spoiler!

Kunena - AlphaUserPoints Enabled: activity=1 avatar=1 profile=1 activity_points_limit=0
Kunena - Community Builder Enabled: access=1 login=0 activity=1 avatar=1 profile=1 private=1
Kunena - Gravatar Disabled
Kunena - JomSocial Enabled: access=1 login=0 activity=1 avatar=1 profile=1 private=1 activity_points_limit=0 activity_stream_limit=0
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:
en-GB	English (United Kingdom)

Third-party components: None

Third-party SEF components: None

Plugins: Search - Kunena Search 3.0.0 | Content - Kunena Discuss 3.0.0 | JomSocial - My Kunena Forum Menu 2.0.4 | JomSocial - My Kunena Forum Posts 2.0.4 | JomSocial - Kunena Groups 2.0.4

Modules: Kunena Latest 3.0.0 | Kunena Stats 3.0.0 | Kunena Login 3.0.0 | Kunena Search 3.0.0

I'll dig into the database if necessary, but I wanted to check here first. I found several posts about the same or similar issue. Although I've not found a resolve other than the German post that, in brief, stated to disable everything but Kunena, hit the menu item to the forum, get it to work, then enable everything again.
That really doesn't sound like a good solution if it's going to "mandate" that I perform those actions.
It seems to me there must be something much more simple.

It gets deeper.
I found that the db had some overhead and I repaired rather than optimized. No changes.
I now have an error (after assigning the Kunena login module to a couple of pages) that states - ERROR: mod_kunenalogin: Kunena 3.0 (or later) is not installed on your system

What's going on?
Kunena has been around forever and worked flawlessly.
In my search for the error, there are over 2,500 sites that have the exact same error.

But today I changed to remove Akeeba Subscriptions as the "front" for Kunena, and changed the menu item to one that goes directly to Kunena.

Maybe this has something to do with it? --> screencast.com/t/7MJ7Zrhs8O

There are also a couple of other things you can do.

1) Change your forum integration plugin settings as shown in red text below:

Kunena - AlphaUserPoints Disabled
Kunena - Community Builder Disabled
Kunena - Gravatar Disabled
Kunena - JomSocial Enabled: Disabled
Kunena - Joomla Enabled: access=1 login=1
Kunena - Kunena Enabled: avatar=1 profile=1
Kunena - UddeIM Enabled: Disabled

2) Uninistall the following Kunena add-ons :

• Search - Kunena Search 3.0.0
• Content - Kunena Discuss 3.0.0
• JomSocial - My Kunena Forum Menu 2.0.4
• JomSocial - My Kunena Forum Posts 2.0.4
• JomSocial - Kunena Groups 2.0.4
• Kunena Latest 3.0.0
• Kunena Stats 3.0.0
• Kunena Login 3.0.0
• Kunena Search 3.0.0

Thanks for the replies.
I was well aware that I'd turned off Akeeba Subscriptions, but it wasn't working prior to that. I don't know if it had anything to do with Kunena or not.

I followed your removal instructions, but that didn't make any difference.
Specifically, some of the 3.0 items weren't there, but I removed what matched.

Now what?

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

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

This message contains confidential information

htaccess: Exists | PHP environment: Max execution time: 60 seconds | Max execution memory: 256M | Max file upload: 64M

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path
131	Community Forum	mainmenu	view=category&catid=1&layout=list	community-forum
164	Forum Registration	mainmenu	view=home&defaultmenu=154	forum-registration
154	Forum	kunenamenu	view=home&defaultmenu=156	forum
155	Index	kunenamenu	view=category&catid=0&layout=list	forum/index
156	Recent Topics	kunenamenu	view=topics&layout=default&mode=replies	forum/recent
157	New Topic	kunenamenu	view=topic&catid=0&layout=create	forum/newtopic
158	No Replies	kunenamenu	view=topics&layout=default&mode=noreplies	forum/noreplies
159	My Topics	kunenamenu	view=topics&layout=user&mode=default	forum/mylatest
160	Profile	kunenamenu	view=user	forum/profile
161	Rules	kunenamenu	view=misc	forum/rules
162	Help	kunenamenu	view=misc	forum/help
163	Search	kunenamenu	view=search	forum/search
217	HELP	top-menu	view=home&defaultmenu=154	community-forum-registration

Joomla default template details : ltcreations2012 | author: | version: 1.0 | creationdate: Unknown

Kunena default template details : Blue Eagle | author: Kunena Team | version: 3.0.6 | creationdate: 2014-07-28

Kunena version detailed: Kunena 3.0.6 | 2014-07-28 [ Tala ]
| Kunena detailed configuration:

Warning: Spoiler!

Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	10
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	1
showemail	0
showuserstats	1
showkarma	0
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	1
maxsubject	50
maxsig	300
regonly	1
pubwrite	0
floodprotection	0
mailmod	0
mailadmin	1
captcha	1
mailfull	1
allowavatarupload	1
allowavatargallery	1
avatarquality	65
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	0
userlist_posts	0
userlist_karma	0
userlist_email	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	0
latestcategory	0
showstats	0
showwhoisonline	1
showgenstats	1
showpopuserstats	0
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	900
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	0
showimgforguest	0
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	0
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	1
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	threaded
time_to_create_page	1
show_imgfiles_manage_profile	1
hold_newusers_posts	0
hold_guest_posts	1
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
autolink	1
access_component	1
statslink_allowed	1
superadmin_userlist	0
userlist_usertype	0
sefutf8	0
changename	1
enablepdf	0
jmambot	1
annmodid	62
userlist_username	1
rules_infb	1
help_infb	1
onlineusers	1

| Kunena integration settings:

Warning: Spoiler!

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)

Third-party components: None

Third-party SEF components: None

Plugins: Search - Kunena Search 3.0.1

Modules: Kunena Latest 3.0.1 | Kunena Stats 3.0.1 | Kunena Login 3.0.1

In an effort to further test, I attempted to install Kunena 3.0.6 in a completely different site using Joomla 3.3.3

I attempted the install from the new Joomla (3.3.3) Install from Web and got the following error:
Sorry, installation failed on fatal error!

So, I thought I'd install from the downloaded file (pkg_kunena_v3.0.6-2014-07-28.zip).
I got an immediate response on the primary upload that said the package uploaded successfully.

Message

Installing Kunena...

Installing package was successful.

But the secondary portion of the installation, where the "pop-up" window shows the progress bar, there is less than 5% progress and the same error appears:

Sorry, installation failed on fatal error!

Installation Details
Prepare Installation ...OK
Installing Kunena - Alphauserpoints plug-in ... OK
Installing Kunena - Community plug-in ... OK
Installing Kunena - Comprofiler plug-in ... OK
Installing Kunena - Gravatar plug-in ... OK
Installing Kunena - Uddeim plug-in ... OK
Installing Kunena - Kunena plug-in ... OK
Installing Kunena - Joomla plug-in ... OK

It seems something inherently wrong with 3.0.6
I'm sure many people don't have any problem. But "something" in the package is not right, apparently.

I've also found this in where the Kunena menu if supposed to appear:

ERROR: mod_kunenalogin: Kunena 3.0 (or later) is not installed on your system!

If that were true I wouldn't be able to post the report above.

#following