Solved UNDEFINED CONSTANT "KPATH_ADMIN"

today we switched to Kunena 6 / Joomla 4 and unlike in the test I bricked the site twice, with the same error message

first time when I set the forum to maintenance mode before I installed the kunena menus and I thought it was related to this.
So I used my backup to restore to first clean J4 environment after the transition, and this time I installed Kunena menus before I set the forum to maintenance. and again the same error.
I believe we are not using US-EN, so I did not follow the recommended change, but used my backup again to start over.
This time I refrained from using the forum maintenance mode, but I might need it at some stage.
Another strange thing - our NTS Kay template is not working - but it was working during the test transition.

Here is our config - maybe you spot something that I messed up

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: 360 seconds | Max execution memory: 128M | Max file upload: 

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path	In trash
522	Forum	mainmenu	Itemid=512	kunena-2023-04-01	No
512	Forum	kunenamenu	view=home&defaultmenu=514	forum	No
513	Index	kunenamenu	view=category&layout=list	forum/index	No
514	Aktuell	kunenamenu	view=topics&mode=replies	forum/aktuell	No
515	Ungelesen	kunenamenu	view=topics&layout=unread	forum/ungelesen	No
516	Neues Thema	kunenamenu	view=topic&layout=create	forum/neuesthema	No
517	Ohne Antwort	kunenamenu	view=topics&mode=noreplies	forum/ohneantwort	No
518	Meine Themen	kunenamenu	view=topics&layout=user&mode=default	forum/meinethemen	No
519	Profil	kunenamenu	view=user	forum/profil	No
521	Suche	kunenamenu	view=search	forum/suche	No

Joomla default template details : shaper_helixultimate | author: JoomShaper.com | version: 2.0.12 | creationdate: Feb 2018

Kunena default template details : Aurelia | author: Kunena Team | version: 6.0.9.1 | creationdate: 2023-02-22

Kunena template params:

Warning: Spoiler!

DefaultCategoryicon
profileIconset	default
DefaultIconset	default
editorIconset	default
bootstrap	1
borderless	1
tooltips	1
SubjectLengthMessage	80
fullactions	1
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	rounded
topicicontype	svg
fontawesome	0
socialshare	0
socialsharetag
socialtheme	classic
optional_username	0
writeaccess	0
localstorage	0
IconColor	inherit
IconColorNew	#48a348
editorType	ckeditor
Bold	1
Italic	1
Underline	1
Strike	1
Subscript	1
Superscript	1
RemoveFormat	1
BulletedList	1
NumberedList	1
Blockquote	1
JustifyLeft	1
JustifyCenter	1
JustifyRight	1
JustifyBlock	1
Link_Unlink	1
Image	1
Smiley	1
Confidential	1
Hidetext	1
Spoiler	1
Code	1
Ebay	1
Twitter	1
Instagram	1
Soundcloud	1
FontSize	1
TextColor	1
Maximize	1
Map	1
Video	1
editorButtons
nameskinckeditor
ckeditorcustomprefixconfigfile
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 6.0.9.1 | 2023-02-22 [ Git Repository ]
    | Kunena detailed configuration:

Warning: Spoiler!

Kunena config settings:
boardOffline	0
enableRss	1
threadsPerPage	20
messagesPerPage	6
messagesPerPageSearch	15
showHistory	1
historyLimit	6
showNew	1
disableEmoticons	0
template	aurelia
showAnnouncement	1
avatarOnCategory	0
showChildCatIcon	1
rteWidth	450
rteHeight	300
enableForumJump	1
reportMsg	1
username	1
askEmail	0
showEmail	0
showUserStats	1
showKarma	1
userEdit	1
userEditTime	0
userEditTimeGrace	600
editMarkup	1
allowSubscriptions	1
subscriptionsChecked	1
allowFavorites	1
maxSig	300
regOnly	0
pubWrite	0
floodProtection	0
mailModerators	0
mailAdministrators	0
captcha	-1
mailFull	1
allowAvatarUpload	1
allowAvatarGallery	1
avatarQuality	75
avatarSize	2048
imageHeight	800
imageWidth	800
imageSize	150
fileTypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2
fileSize	120
showRanking	1
rankImages	1
userlistRows	30
userlistOnline	1
userlistAvatar	1
userlistPosts	1
userlistKarma	1
userlistEmail	0
userlistJoinDate	1
userlistLastVisitDate	1
userlistUserHits	1
latestCategory	0
showStats	1
showWhoIsOnline	1
showGenStats	1
showPopUserStats	1
popUserCount	5
showPopSubjectStats	1
popSubjectCount	5
showSpoilerTag	1
showVideoTag	1
showEbayTag	1
trimLongUrls	1
trimLongUrlsFront	40
trimLongUrlsBack	20
autoEmbedYoutube	1
autoEmbedEbay	1
ebayLanguageCode	en-us
sessionTimeOut	1800
highlightCode	0
rssType	topic
rssTimeLimit	1 month
rssLimit	100
rssIncludedCategories
rssExcludedCategories
rssSpecification	rss2.0
rssAllowHtml	1
rssAuthorFormat	name
rssAuthorInTitle	1
rssWordCount	0
rssOldTitles	1
rssCache	900
defaultPage	recent
defaultSort	asc
sef	1
showImgForGuest	1
showFileForGuest	1
pollNbOptions	4
pollAllowVoteOne	1
pollEnabled	1
popPollsCount	5
showPopPollStats	1
pollTimeBtVotes	00:15:00
pollNbVotesByUser	100
pollResultsUserslist	1
allowUserEditPoll	0
maxPersonalText	50
orderingSystem	mesid
postDateFormat	ago
postDateFormatHover	datetime
hideIp	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
userDeleteMessage	0
latestCategoryIn	1
topicIcons	1
debug	0
catsAutoSubscribed	0
showBannedReason	0
showThankYou	1
showPopThankYouStats	1
popThanksCount	5
modSeeDeleted	0
bbcodeImgSecure	text
listCatShowModerators	1
lightbox	1
showListTime	720
showSessionType	2
showSessionStartTime	1800
userlistAllowed	1
userlistCountUsers	1
enableThreadedLayouts	0
categorySubscriptions	post
topicSubscriptions	every
pubProfile	1
thankYouMax	10
emailRecipientCount	0
emailRecipientPrivacy	bcc
captchaPostLimit	0
imageUpload	registered
fileUpload	registered
topicLayout	flat
timeToCreatePage	1
showImgFilesManageProfile	1
holdNewUsersPosts	0
holdGuestPosts	0
attachmentLimit	8
pickupCategory	0
articleDisplay	intro
sendEmails	1
fallbackEnglish	1
cache	1
cacheTime	60
ipTracking	1
rssFeedBurnerUrl
autoLink	1
accessComponent	1
statsLinkAllowed	1
superAdminUserlist	0
attachmentProtection	0
categoryIcons	1
avatarCrop	0
userReport	1
searchTime	365
teaser	1
ebayLanguage	0
ebayCertId
allowChangeSubject	1
maxLinks	6
readOnly	0
ratingEnabled	0
urlSubjectTopic	0
logModeration	0
attachStart	0
attachEnd	14
attachmentUtf8	1
autoEmbedSoundcloud	1
emailHeader	media/kunena/email/hero-wide.png
userStatus	1
signature	1
personal	1
social	1
plainEmail	0
moderatorPermDelete	0
avatarTypes	gif, jpeg, jpg, png
smartLinking	0
defaultAvatar	nophoto.png
defaultAvatarSmall	s_nophoto.png
quickReply	1
avatarEdit	0
activeMenuItem
mainMenuId
homeId
indexId
moderatorsId
topicListId
miscId
profileId
searchId
custom_id
avatarType	1
sefRedirect	1
allowEditPoll	1
useSystemEmails	0
autoEmbedInstagram	1
disableRe	0
email_sender_name	kletterdorf.de Forum
display_filename_attachment	1
new_users_prevent_post_url_images	0
minimal_user_posts_add_url_image	10
utmSource	0
emailHeaderSizeY	560
emailHeaderSizeX	560
moderator_id
profiler	0
pickup_category	1
board_title	kletterdorf
board_offline	1
offline_message	Das Kletterdorf befindet sich im Wartungsmodus. Komm' später wieder vorbei!
enablerss	1
threads_per_page	20
messages_per_page	15
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
disemoticons	0
showannouncement	1
avataroncat	1
catimagepath	category_images
showchildcaticon	1
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
askemail	0
showemail	0
showuserstats	1
showkarma	1
useredit	1
useredittime	600
useredittimegrace	600
editmarkup	1
allowsubscriptions	1
subscriptionschecked	1
allowfavorites	1
maxsubject	50
maxsig	300
regonly	0
pubwrite	0
floodprotection	0
mailmod	-1
mailadmin	-1
mailfull	1
allowavatarupload	1
allowavatargallery	1
avatarquality	75
avatarsize	2048
imageheight	800
imagewidth	1400
imagesize	15000
filetypes	txt,rtf,pdf,zip,tar.gz,tgz,tar.bz2
filesize	1200
showranking	1
rankimages	4
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_posts	1
userlist_karma	1
userlist_email	0
userlist_joindate	1
userlist_lastvisitdate	1
userlist_userhits	1
latestcategory	0
showstats	1
showwhoisonline	1
showgenstats	1
showpopuserstats	1
popusercount	5
showpopsubjectstats	1
popsubjectcount	5
showspoilertag	1
showvideotag	1
showebaytag	1
trimlongurls	1
trimlongurlsfront	10
trimlongurlsback	14
autoembedyoutube	1
autoembedebay	1
ebaylanguagecode	en-us
sessiontimeout	1800
highlightcode	0
rss_type	recent
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	desc
showimgforguest	1
showfileforguest	0
pollnboptions	10
pollallowvoteone	1
pollenabled	1
poppollscount	5
showpoppollstats	1
polltimebtvotes	00:15:00
pollnbvotesbyuser	100
pollresultsuserslist	1
allow_user_edit_poll	0
maxpersotext	50
ordering_system	mesid
post_dateformat	datetime
post_dateformat_hover	datetime_today
hide_ip	1
imagetypes	jpg,jpeg,gif,png
checkmimetypes	0
imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
imagequality	100
thumbheight	100
thumbwidth	100
hideuserprofileinfo	put_empty
boxghostmessage	0
userdeletetmessage	0
latestcategory_in	1
topicicons	1
catsautosubscribed	0
showbannedreason	0
showthankyou	1
showpopthankyoustats	1
popthankscount	5
mod_see_deleted	0
bbcode_img_secure	text
listcat_show_moderators	1
show_list_time	0
show_session_type	2
show_session_starttime	1800
userlist_allowed	0
userlist_count_users	1
enable_threaded_layouts	0
category_subscriptions	disabled
topic_subscriptions	first
pubprofile	0
thankyou_max	10
email_recipient_count	0
email_recipient_privacy	bcc
email_visible_address	[email protected]
captcha_post_limit	0
image_upload	registered
file_upload	registered
topic_layout	flat
time_to_create_page	1
show_imgfiles_manage_profile	1
hold_newusers_posts	0
hold_guest_posts	1
attachment_limit	8
article_display	link
send_emails	1
fallback_english	1
cache_time	60
ebay_affiliate_id	5337089937
iptracking	1
rss_feedburner_url
autolink	1
access_component	0
statslink_allowed	1
superadmin_userlist	0
legacy_urls	0
attachment_protection	1
categoryicons	1
avatarresizemethod	1
avatarcrop	0
user_report	1
searchtime	all
ebay_language	77
ebay_api_key
ebay_cert_id
twitter_consumer_key	QDHG15T7wrEX3SeXoL950CWiz
twitter_consumer_secret	wFz4RQCbrXmosFaPxPLAMGaSXB2wvVKLGpvTc0VO1FIQse0dIQ
allow_change_subject	0
max_links	6
read_only	0
ratingenabled	0
url_subject_topic	0
log_moderation	1
attach_start	0
attach_end	14
google_map_api_key	AIzaSyDL69aAnglWZdv5EvjjS0fmcWV
attachment_utf8	1
autoembedsoundcloud	1
emailheader	media/kunena/email/hero-wide.png
user_status	1
plain_email	0
moderator_permdelete	0
avatartypes	gif, jpeg, jpg, png
smartlinking	0
defaultavatar	nophoto.png
defaultavatarsmall	s_nophoto.png
stopforumspam_key
quickreply	1
avataredit	0
activemenuitem
mainmenu_id
home_id
index_id
moderators_id
topiclist_id
misc_id
profile_id
search_id
avatar_type	0
sef_redirect	1
allow_edit_poll	0
use_system_emails	0
autoembedinstagram	1
disable_re	0

| Kunena integration settings:

Warning: Spoiler!

Kunena - Finder Disabled
 Kunena - AltaUserPoints Disabled
 Kunena - Community Builder Enabled:  access=1  login=1  activity=1  avatar=1  profile=1  private=1  
 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  

| Joomla! detailed language files installed:

Warning: Spoiler!

Joomla! languages installed:
de-DE	German (Germany)
en-GB	English (United Kingdom)

Third-party components: None

Third-party SEF components: None

Plugins: Content - Kunena Discuss 6.0.2-DEV

Modules: Kunena Latest 6.0.2

Post moved. Please always create a separate topic in case of problems.
According to the configuration report, you don't have the Commnity Builder installed. Disable the plugin "Kunena - Community Builder integration". This should solve the problem.

thanks for moving the post and your advice.
Community was and is installed, not sure why the report states that it is not installed.
what do you suggest to correct this?

I have tested it and confirm the error. It could be because the Community Builder is not recognised correctly. I've added it to our bug list.

Hello,
same here. Any solution?

Hello,

Please update to 6.0.11 version, it's fixed in most recent versions