Question Fatal error on some pages after 4.0.11

I get "500 internal server error" on selected pages on my forum.

From the same topic, this page works:
tamiyabase.com/forum/forum/8-ebay-tips/1....html?limitstart=620

The previous page gets fatal error:
tamiyabase.com/forum/forum/8-ebay-tips/1....html?limitstart=610

Everything was working fine before upgrading from 4.0.10

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: 120 seconds | Max execution memory: 64M | Max file upload: 80M

Kunena menu details:

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ID	Name	Menutype	Link	Path	In trash
1110	Forum	kunenamenu	view=home&defaultmenu=1111	forum	No
1111	Index	kunenamenu	view=category&layout=list&catid=0	forum/index	No
1112	Recent Topics	kunenamenu	view=topics&mode=replies	forum/recent	No
1113	New Topic	kunenamenu	view=topic&layout=create&catid=	forum/newtopic	No
1114	No Replies	kunenamenu	view=topics&mode=noreplies	forum/noreplies	No
1115	My Topics	kunenamenu	view=topics&layout=user&mode=default	forum/mylatest	No
1119	Topics started by me	kunenamenu	view=topics&layout=user&mode=started&modetype=	forum/mytopics	No
1116	Profile	kunenamenu	view=user	forum/profile	No
1117	Help	kunenamenu	view=misc	forum/help	No
1118	Search	kunenamenu	view=search	forum/search	No
1209	Rules	kunenamenu	view=misc	forum/rules	No
1552	Recent posts	kunenamenu	view=topics&layout=posts&mode=recent	forum/recent-posts	No

Joomla default template details : rt_nuance | author: RocketTheme, LLC | version: 1.4 | creationdate: October 16, 2015

Kunena default template details : Blue Eagle | author: Kunena Team | version: 4.0.11 | creationdate: 2016-06-05

Kunena version detailed: Kunena 4.0.11 | 2016-06-05 [ Barcelona ]
| Kunena detailed configuration:

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Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	20
messages_per_page	10
messages_per_page_search	15
showhistory	1
historylimit	6
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template	blue_eagle
showannouncement	1
avataroncat	0
catimagepath	category_images/
showchildcaticon	0
rtewidth	800
rteheight	300
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reportmsg	1
username	1
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showuserstats	1
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useredit	1
useredittime	0
useredittimegrace	600
editmarkup	1
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subscriptionschecked	1
allowfavorites	1
maxsubject	50
maxsig	600
regonly	0
pubwrite	0
floodprotection	0
mailmod	0
mailadmin	0
captcha	-1
mailfull	0
allowavatarupload	1
allowavatargallery	1
avatarquality	65
avatarsize	2048
imageheight	1600
imagewidth	1600
imagesize	4096
filetypes	zip,txt,doc,gz,tgz
filesize	4096
showranking	1
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popsubjectcount	10
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showvideotag	1
showebaytag	1
trimlongurls	1
trimlongurlsfront	15
trimlongurlsback	10
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autoembedebay	1
ebaylanguagecode	en-us
sessiontimeout	3600
highlightcode	0
rss_type	topic
rss_timelimit	month
rss_limit	100
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rss_excluded_categories
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sef	1
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post_dateformat_hover	datetime
hide_ip	1
imagetypes	jpg,jpeg,gif,png
checkmimetypes	1
imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
imagequality	80
thumbheight	32
thumbwidth	32
hideuserprofileinfo	put_empty
boxghostmessage	0
userdeletetmessage	0
latestcategory_in	1
topicicons	1
debug	0
catsautosubscribed	0
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popthankscount	10
mod_see_deleted	1
bbcode_img_secure	image
listcat_show_moderators	1
lightbox	1
show_list_time	8760
show_session_type	0
show_session_starttime	0
userlist_allowed	0
userlist_count_users	1
enable_threaded_layouts	0
category_subscriptions	post
topic_subscriptions	first
pubprofile	1
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	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	1
cache_time	120
iptracking	1
rss_feedburner_url
autolink	1
access_component	1
statslink_allowed	1
superadmin_userlist	0
legacy_urls	1
attachment_protection	0
categoryicons	1
avatarresizemethod	1
avatarcrop	0
user_report	1
searchtime	all
teaser	0
ebay_language	0
twitter_consumer_key
twitter_consumer_secret
allow_change_subject	0
max_links	20
userlist_name	0
usernamechange	0
version_check	1
userlist_usertype	0
sefutf8	0
enablepdf	0
jmambot	0
annmodid	63
changename	0
userlist_username	1
rules_infb	1
help_infb	0
onlineusers	1

| Kunena integration settings:

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Kunena - AlphaUserPoints Disabled
Kunena - Community Builder Enabled: access=1 login=0 activity=1 avatar=1 profile=1 private=1
Kunena - Gravatar Disabled
Kunena - JomSocial Disabled
Kunena - Joomla Enabled: access=1 login=0
Kunena - Kunena Enabled: avatar=1 profile=1
Kunena - UddeIM Enabled: private=1

| Joomla! detailed language files installed:

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Joomla! languages installed:
en-GB	English (en-GB)

Third-party components: CommunityBuilder 2.0.14 | UddeIM 3.8

Third-party SEF components: sh404sef 4.4.6.2271

Plugins: Search - Kunena Search 3.1.2

Modules: Kunena Latest 3.1.2.1 | Kunena Search 3.1.2

Anyone knows where I can download 4.0.10?

enable kunena debug on the config, that will show you the real issue.

This is what I get:

Strict Standards: Non-static method KunenaBbcodeLibrary::getEbayItemFromCache() should not be called statically in /home/admin/public_html/libraries/kunena/bbcode/bbcode.php on line 2758

Notice: Undefined variable: params in libraries/kunena/bbcode/bbcode.php on line 2762


Fatal Error: Object of class stdClass could not be converted to string in libraries/kunena/external/nbbc/nbbc.php on line 1217

The original post text from the above post creating error seem to be this:

Other posts using the standard BBcode is working:

try to clean cache