Important 404 error after upgrade

if I click quick replay button, everything works OK., but if I try other buttons: edit, replay, quote, moderate or delete in any topic I get 404 error.
Could you help me?
my site: http://xn--jzyk-polski-rrb.pl/forum.html

My report:

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: 128M | Max file upload: 64M

Joomla default template details : polski | author: Arkadiusz Żmij | version: 1.4 | creationdate: 30 July 2009

Kunena default template details : Blue Eagle (default) | author: Kunena Team | version: 1.7.0 | creationdate: 2011-08-29

Kunena version detailled: Installed version: 1.7.0 | Build: 5135 | Version name: Tale | Kunena detailled configuration:

Warning: Spoiler!

[th]Kunena config settings:[/th]

board_title	język-polski.pl
board_offline	0
board_ofset	0
offline_message	<h2>Trwają prace konserwacyjne</h2> Zajrzyj później!
enablerss	1
enablepdf	0
threads_per_page	30
messages_per_page	15
messages_per_page_search	15
showhistory	1
historylimit	10
shownew	1
jmambot	1
disemoticons	0
template	default
showannouncement	1
avataroncat	1
catimagepath	category_images/
showchildcaticon	1
annmodid	64
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	0
showemail	0
showuserstats	1
showkarma	0
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	0
captcha	1
mailfull	1
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	zip,txt,doc,gz,tgz
filesize	120
showranking	1
rankimages	1
avatar_src
fb_profile
pm_component
userlist_rows	30
userlist_online	1
userlist_avatar	1
userlist_name	0
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	0
showstats	1
showwhoisonline	1
showgenstats	1
showpopuserstats	1
popusercount	5
showpopsubjectstats	1
popsubjectcount	5
usernamechange	0
rules_infb	0
rules_cid	0
help_infb	0
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	topic
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
fbdefaultpage	categories
default_sort	asc
alphauserpointsnumchars	0
sef	1
sefcats	0
sefutf8	1
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	joomla
integration_login	none
integration_avatar	auto
integration_profile	auto
integration_private	none
integration_activity	none
boxghostmessage	1
userdeletetmessage	0
latestcategory_in	1
topicicons	1
onlineusers	1
debug	0
catsautosubscribed	0
showbannedreason	0
version_check	1
showthankyou	1
showpopthankyoustats	1
popthankscount	5
mod_see_deleted	0
bbcode_img_secure	image
listcat_show_moderators	1
lightbox	1
activity_limit	0
show_list_time	720
show_session_type	0
show_session_starttime	0
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
email_visible_address
captcha_post_limit	0
recaptcha_publickey
recaptcha_privatekey
recaptcha_theme	white

Third-party components: None

Third-party SEF components: None

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

Modules: None

The "404 errors" have nothing to do with the upgrade itself. As you probably already know, the main reason that people get 404 errors in Joomla is when they have problems with their Joomla menu. I suggest you look at the FAQs (there's a menu item on near the top of this page) that explains how to setup your Kunena menu.