Question 404 - Not found after latest update

I enabled Kunena debug mode and Kunena Discuss, but the message is the same.

When the extension is enabled article with comments displays a message "404 - Not found".

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: 128M | Max file upload: 100M

Kunena menu details:

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ID	Name	Menutype	Link	Path	In trash
683	Forum	top	Itemid=1085	kunena-2014-08-11	No
865	Mobile	top	view=home&defaultmenu=437	mobile	Yes
1055	Forum	moblile-menu	view=home&defaultmenu=915	forum-mobile	No
1085	Forum	kunenamenu	view=home&defaultmenu=1086	forum-bytomia	No
1086	Kategorie	kunenamenu	view=category&layout=list	forum-bytomia/kategorie	No
1087	Ostatnie tematy	kunenamenu	view=topics&mode=replies	forum-bytomia/ostatnie	No
1088	Nowy temat	kunenamenu	view=topic&layout=create	forum-bytomia/nowy-temat	No
1089	Bez odpowiedzi	kunenamenu	view=topics&mode=noreplies	forum-bytomia/bez-odpowiedzi	No
1090	Moje tematy	kunenamenu	view=topics&layout=user&mode=default	forum-bytomia/moje-najnowsze	No
1091	Profil	kunenamenu	view=user	forum-bytomia/profil	No
1092	Pomoc	kunenamenu	view=misc	forum-bytomia/pomoc	No
1093	Szukaj na Forum	kunenamenu	view=search	forum-bytomia/szukaj	No

Joomla default template details : ja_wall | author: JoomlArt.com | version: 1.0.7 | creationdate: 22 December 2012

Kunena default template details : NTS Kay | author: Nice Theme Store | version: 5.0.5 | creationdate: 2016-12-12

Kunena template params:

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{"DefaultCategoryicon":"fa fa-folder","profileIconset":"default","editorIconset":"default","lightboxColor":"white","borderless":"1","tooltips":"1","SubjectLengthMessage":"80","fullactions":"0","quick":"0","displayMenu":"1","displayDropdownMenu":"1","displayDropdownContent":"1","displayModule":"1","displayBreadcrumb":"1","displayAnnouncement":"1","displayFooter":"1","avatarPosition":"left","formRecover":"0","labels":"0","whoisonlineName":"default","avatarType":"img-rounded","topicicontype":"fa","fontawesome":"1","bootstrap":"1","icons":"0","socialshare":"0","socialtheme":"classic","writeaccess":"0","localstorage":"0","video":"1","maps":"1","emoticons":"1","twitter":"1","ebay":"1","link":"1","picture":"1","hide":"1","spoiler":"1","table":"1","code":"1","quote":"1","divider":"1","instagram":"1","soundcloud":"1","confidential":"1","hr":"1","listitem":"1","supscript":"1","subscript":"1","numericlist":"1","bulletedlist":"1","alignright":"1","alignleft":"1","center":"1","underline":"1","italic":"1","bold":"1","strikethrough":"1","colors":"1","size":"1","theme_color":"default","kBrandColor":"#337ab7","kHeaderBg":"#222222","kHeaderBorder":"#337ab7","kHeaderColor":"#ffffff","kHeaderDescColor":"#999999","kHeaderLinkColor":"#ffffff","kHeaderLinkHoverColor":"#ffffff","kIconBg":"#337ab7","kIconColor":"#ffffff","avatarSizeX":"40","avatarSizeY":"90","avatarSizeXThumb":"36","avatarSizeYThumb":"36","avatarSizeXWelcome":"72","avatarSizeYWelcome":"72","avatarSizeXList":"36","avatarSizeYList":"36","avatarSizeXPost":"144","avatarSizeYPost":"144","avatarSizeXProfile":"200","avatarSizeYProfile":"200","templatebyText":"","templatebyName":"","templatebyLink":""}

Kunena version detailed: Kunena 5.0.4.1 | 2016-11-26 [ Dhole ]
| Kunena detailed configuration:

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Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	25
messages_per_page	15
messages_per_page_search	15
showhistory	1
historylimit	20
shownew	1
disemoticons	0
template	nts_kay
showannouncement	1
avataroncat	1
catimagepath	category_images/
showchildcaticon	1
rtewidth	450
rteheight	300
enableforumjump	0
reportmsg	1
username	0
askemail	0
showemail	1
showuserstats	1
showkarma	0
useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	0
maxsubject	50
maxsig	0
regonly	0
pubwrite	0
floodprotection	15
mailmod	0
mailadmin	0
captcha	0
mailfull	0
allowavatarupload	1
allowavatargallery	0
avatarquality	100
avatarsize	100000
imageheight	1200
imagewidth	1200
imagesize	1024
filetypes	zip,txt,pdf,doc,jpg,png,jpeg,gir
filesize	1024
showranking	1
rankimages	1
userlist_rows	30
userlist_online	0
userlist_avatar	1
userlist_posts	1
userlist_karma	1
userlist_email	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	0
latestcategory
showstats	0
showwhoisonline	0
showgenstats	0
showpopuserstats	0
popusercount	5
showpopsubjectstats	0
popsubjectcount	5
showspoilertag	1
showvideotag	1
showebaytag	0
trimlongurls	1
trimlongurlsfront	40
trimlongurlsback	20
autoembedyoutube	1
autoembedebay	0
ebaylanguagecode	en-us
sessiontimeout	1500
highlightcode	0
rss_type	post
rss_timelimit	month
rss_limit	15
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	250
rss_old_titles	1
rss_cache	900
defaultpage	categories
default_sort	asc
sef	1
showimgforguest	1
showfileforguest	1
pollnboptions	4
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	0
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
maxpersotext	50
ordering_system	mesid
post_dateformat	datetime
post_dateformat_hover	datetime
hide_ip	1
imagetypes	jpg,jpeg,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/png
imagequality	50
thumbheight	32
thumbwidth	32
hideuserprofileinfo	put_empty
boxghostmessage	0
userdeletetmessage	0
latestcategory_in	1
topicicons	0
debug	0
catsautosubscribed	0
showbannedreason	0
showthankyou	1
showpopthankyoustats	0
popthankscount	5
mod_see_deleted	0
bbcode_img_secure	text
listcat_show_moderators	0
lightbox	1
show_list_time	720
show_session_type	0
show_session_starttime	0
userlist_allowed	0
userlist_count_users	2
enable_threaded_layouts	0
category_subscriptions	post
topic_subscriptions	every
pubprofile	1
thankyou_max	10
email_recipient_count	0
email_recipient_privacy	bcc
captcha_post_limit	0
image_upload	registered
file_upload	everybody
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	0
article_display	full
send_emails	0
fallback_english	1
cache	1
cache_time	60
iptracking	1
rss_feedburner_url
autolink	1
access_component	1
statslink_allowed	0
superadmin_userlist	0
legacy_urls	1
attachment_protection	0
categoryicons	1
avatarresizemethod	1
avatarcrop	0
user_report	1
searchtime	365
teaser	0
ebay_language	212
twitter_consumer_key
twitter_consumer_secret
allow_change_subject	1
max_links	15
read_only	0
ratingenabled	0
url_subject_topic	0
log_moderation	0
attach_start	0
attach_end	14
google_map_api_key
attachment_utf8	1
autoembedsoundcloud	1
emailheader	/media/kunena/email/hero-wide.png
user_status	1
plain_email	0
keywords	0
userkeywords	0
userlist_name	1
usernamechange	0
version_check	0
userlist_usertype	0
sefutf8	0
enablepdf	1
jmambot	0
annmodid	62
changename	0
userlist_username	1
rules_infb	1
help_infb	1
onlineusers	1

| Kunena integration settings:

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Kunena - AlphaUserPoints Disabled
Kunena - AltaUserPoints Disabled
Kunena - Community Builder Disabled
Kunena - Easyblog Disabled
Kunena - Easyprofile Disabled
Kunena - Easysocial 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:
pl-PL	Polski (PL)
en-GB	English (en-GB)

Third-party components: Jomsocial 3.2.0.5

Third-party SEF components: None

Plugins: Search - Kunena Search 5.0.2 | Content - Kunena Discuss 5.0.2 | JomSocial - My Kunena Forum Menu 2.0.3 | JomSocial - Kunena Groups 2.0.3

Modules: Kunena Latest 5.0.2 | Kunena Stats 5.0.2 | Kunena Login 5.0.2 | Kunena Search 5.0.2