Bug [Problem assumed resolved - no response from user] Error 500 on website

All of a sudden, we are getting an error 50 when accessing forums. We can't view or edit anything on the front end. I can get into the control panel in admin, but the front end does not work. Please help!!

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

Legacy mode: Disabled | 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: 64M | Max file upload: 64M

Joomla default template details : | author: | version: | creationdate:

Kunena default template details : Blue Eagle (default) | author: Kunena Team | version: 1.6.4 | creationdate: 2011-05-07

Kunena version detailled: Installed version: 1.6.4 | Build: 4832 | Version name: Kerkrade | Kunena detailled configuration:

Warning: Spoiler!

[th]Kunena config settings:[/th]

board_title	Accounting Software Forums
board_offline	0
board_ofset	0.00
offline_message	<h2>The Forum is currently offline for maintenance.</h2> <div>Check back soon!</div>
enablerss	1
enablepdf	0
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	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	1
showemail	0
showuserstats	0
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	0
floodprotection	0
mailmod	1
mailadmin	1
captcha	0
mailfull	0
allowavatar	1
allowavatarupload	1
allowavatargallery	1
avatarquality	65
avatarsize	2048
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	0
userlist_avatar	0
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
showstats	1
showwhoisonline	1
showgenstats	1
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	0
ebaylanguagecode	en-us
fbsessiontimeout	1800
highlightcode	0
rss_type	post
rss_timelimit	month
rss_limit	100
rss_included_categories
rss_excluded_categories
rss_specification	rss2.0
rss_allow_html	0
rss_author_format	name
rss_author_in_title	0
rss_word_count	100
rss_old_titles	0
rss_cache	900
fbdefaultpage	recent
default_sort	asc
alphauserpointsnumchars	20
sef	1
sefcats	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
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	1
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

Third-party components: AlphaUserPoints: The file doesn't exist alphauserpoints.xml !

Third-party SEF components: AceSEF 1.7.3

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

Modules: None

Hello,

Please update Kunena to 1.7.1 version and check if the issue persist

I prefer the scientific approach to diagnosing conditions that arise "all of a sudden".

I see that you have now updated to K 1.7.1 and, although you do not have HTTP 500 Internal Server Errors, you do have some errors involving Kunena. If you enable Kunena debug mode you may see more information that explains the cause of these errors.

The diagnosis of HTTP 500 Internal Server errors in Joomla (whether we are discussing Kunena or anything Joomla-related) starts by enabling Joomla debug mode and looking at any clues that Joomla can give about where the error is coming from. Sometimes the investigation also means that you need to look at your server log files.

Looks like you're getting some random Kunena internal errors. Basically you have some issues with MySQL (timeouts or too small limit on concurrent connections). I cannot tell which until you enable Joomla debug mode and send the error page (screenshot or copy contents) to us.

I had this problem but it resolved when I upgraded to the latest version

*** Topic closed - no response from user ***