Question Cannot create new topic - Fatal Error: Class 'KunenaSpamRecaptcha' not found

Update: The fatal error appears when a "new topic" or "create reply" is attempted, but not when the "quick reply" button is selected.

Still open to suggestions on this Fatal Error, we are still receiving it.

Thank you!

You use Joomla Key Captcha on your page. Maybe there is a conflict? If the reCaptcha plugin is enabled, then disable this plugin and change the setting in Kunena (tab security) to:
Display Captcha for : = Guest Users and Registered Users
CAPTCHA Challenge for Users = 0

Then empty the cache and try it again.

Thanks. I did as you suggested but still see the error.

Hello,

I have still made no progress on this error. What can I be checking for? I've been through every extension / module and we still have the 500 server error. I've checked permissions, updates, and everything I can think of. Really appreciate any thoughts.

Thanks!

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

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

This message contains confidential information

htaccess: Missing | PHP environment: Max execution time: 30 seconds | Max execution memory: 512M | Max file upload: 128M

Kunena menu details:

Warning: Spoiler!

ID	Name	Menutype	Link	Path	In trash
186	Forum	mainmenu	view=home&defaultmenu=883	2014-06-04-18-58-54	No
338	Forum Home	mainmenu	view=home&defaultmenu=883	2014-06-04-18-58-54/2014-12-15-15-36-45	No
337	Latest Posts	mainmenu	view=topics&layout=posts&mode=recent	2014-06-04-18-58-54/latest-posts	No
482	Welcome!	mainmenu	view=category&catid=6	2014-06-04-18-58-54/2015-03-25-23-03-05	No
478	Bench Racing / General Topics	mainmenu	view=category&catid=7	2014-06-04-18-58-54/2015-03-25-22-58-07	No
350	V8TV Car Builds	mainmenu	view=category&catid=5	2014-06-04-18-58-54/2014-12-15-18-02-49	No
479	Member Rides and Build Threads	mainmenu	view=category&catid=8	2014-06-04-18-58-54/2015-03-25-22-59-39	No
480	Shops And Garages	mainmenu	view=category&catid=12	2014-06-04-18-58-54/2015-03-25-23-00-37	No
477	Muscle Car Of The Week	mainmenu	view=category&catid=9	2014-06-04-18-58-54/2015-03-25-22-49-44	No
536	Muscle Car And Corvette Nationals	mainmenu	view=category&catid=16	2014-06-04-18-58-54/2015-07-24-16-48-53	No
481	V8 Speed And Resto Shop News	mainmenu	view=category&catid=11	2014-06-04-18-58-54/2015-03-25-23-02-03	No
495	New Parts And Stuff	mainmenu	view=category&catid=17	2014-06-04-18-58-54/new-parts-stuff	No
511	Non Auto Related	mainmenu	view=category&catid=20	2014-06-04-18-58-54/non-auto-related	No
534	Restoration Tips	mainmenu	view=category&catid=19	2014-06-04-18-58-54/2015-07-23-00-05-06	No
542	Events And Cool Stuff To Do	mainmenu	view=category&catid=10	2014-06-04-18-58-54/2015-08-07-14-28-31	No
804	Forum Search	mainmenu	view=search	2014-06-04-18-58-54/forum-search	No
883	Forum	kunenamenu	view=home&defaultmenu=885	forum	No
884	Index	kunenamenu	view=category&layout=list	forum/index	No
885	Recent Topics	kunenamenu	view=topics&mode=replies	forum/recent	No
886	New Topic	kunenamenu	view=topic&layout=create	forum/newtopic	No
887	No Replies	kunenamenu	view=topics&mode=noreplies	forum/noreplies	No
888	My Topics	kunenamenu	view=topics&layout=user&mode=default	forum/mylatest	No
889	Profile	kunenamenu	view=user	forum/profile	No
890	Help	kunenamenu	view=misc	forum/help	No
891	Search	kunenamenu	view=search	forum/search	No
892	Forum	mainmenu	Itemid=883	kunena-2016-11-13	No

Joomla default template details : protostar | author: Kyle Ledbetter | version: 1.0 | creationdate: 4/30/2012

Kunena default template details : Crypsis | author: Kunena Team | version: 5.0.3 | creationdate: 2016-10-23

Kunena version detailed: Kunena 5.0.3 | 2016-10-23 [ Dibatag ]
| Kunena detailed configuration:

Warning: Spoiler!

Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	20
messages_per_page	6
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	1
disemoticons	0
template	crypsis
showannouncement	1
avataroncat	0
catimagepath	category_images
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
maxsubject	50
maxsig	300
regonly	0
pubwrite	0
floodprotection	0
mailmod	0
mailadmin	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
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
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
rss_type	topic
rss_timelimit	month
rss_limit	100
rss_included_categories
rss_excluded_categories
rss_specification	atom1.0
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	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
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	1
topicicons	1
debug	1
catsautosubscribed	0
showbannedreason	0
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	2
show_session_starttime	1800
userlist_allowed	0
userlist_count_users	1
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	registered
topic_layout	flat
time_to_create_page	1
show_imgfiles_manage_profile	1
hold_newusers_posts	0
hold_guest_posts	0
attachment_limit	8
pickup_category	0
article_display	intro
send_emails	1
fallback_english	1
cache	0
cache_time	60
iptracking	1
rss_feedburner_url
autolink	1
access_component	0
statslink_allowed	1
superadmin_userlist	0
legacy_urls	0
attachment_protection	0
categoryicons	1
avatarresizemethod	1
avatarcrop	0
user_report	1
searchtime	365
teaser	0
ebay_language	0
twitter_consumer_key
twitter_consumer_secret
allow_change_subject	1
max_links	6
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
keywords	0
userkeywords	0
userlist_name	1
usernamechange	0
version_check	1

| Kunena integration settings:

Warning: Spoiler!

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:
en-GB	English (en-GB)

Third-party components: None

Third-party SEF components: None

Plugins: Search - Kunena Search 5.0.1 | Content - Kunena Discuss 5.0.1

Modules: Kunena Latest 5.0.1 | Kunena Stats 5.0.1 | Kunena Login 5.0.1

maybe missing table for joomla recaptcha.

try on subdomain, new joomla install. Then copy the kunena tables. Then install kunena package.

Set the site configuration. And see if its works now.