Question Unable to upload avatar file

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

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

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htaccess: Exists | PHP environment: Max execution time: 30 seconds | Max execution memory: 128M | Max file upload: 2M

Kunena menu details:

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ID	Name	Menutype	Link	Path
138	Forum	mainmenu	view=home&defaultmenu=138	forum1
137	Forum	mainmenu	Itemid=128	kunena-2013-11-21
128	Forum	mainmenu	view=home&defaultmenu=128	kunena
129	Index	kunenamenu	view=category&layout=list	kunena/index
130	Recent Topics	kunenamenu	view=topics&mode=replies	kunena/recent
131	New Topic	kunenamenu	view=topic&layout=create	kunena/newtopic
132	No Replies	kunenamenu	view=topics&mode=noreplies	kunena/noreplies
133	My Topics	kunenamenu	view=topics&layout=user&mode=default	kunena/mylatest
134	Profile	kunenamenu	view=user	kunena/profile
135	Help	kunenamenu	view=misc	kunena/help
136	Search	kunenamenu	view=search	kunena/search

Joomla default template details : rt_oculus | author: RocketTheme, LLC | version: 1.2 | creationdate: Unknown

Kunena default template details : NTS KAgate | author: Nice Theme Store | version: 3.0.4 | creationdate: 2013-12-24

Kunena version detailed: Kunena 3.0.4 | 2013-12-22 [ Ukko ]
| Kunena detailed configuration:

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Kunena config settings:
board_offline	0
enablerss	1
threads_per_page	66
messages_per_page	25
messages_per_page_search	15
showhistory	1
historylimit	6
shownew	0
disemoticons	0
template	nts_kagate
showannouncement	1
avataroncat	1
catimagepath	category_images
showchildcaticon	1
rtewidth	450
rteheight	300
enableforumjump	1
reportmsg	1
username	1
askemail	0
showemail	0
showuserstats	1
showkarma	1
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useredittimegrace	600
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allowfavorites	1
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maxsig	300
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floodprotection	0
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allowavatarupload	1
allowavatargallery	1
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avatarsize	2048
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imagewidth	800
imagesize	1536
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filesize	120
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trimlongurlsback	20
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imagemimetypes	image/jpeg,image/jpg,image/gif,image/png
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image_upload	registered
file_upload	registered
topic_layout	flat
time_to_create_page	1
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attachment_limit	8
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fallback_english	1
cache	1
cache_time	60
iptracking	1
rss_feedburner_url
autolink	1
access_component	0
statslink_allowed	1

| Kunena integration settings:

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Kunena - AlphaUserPoints Disabled
Kunena - Community Builder Disabled
Kunena - Gravatar Disabled
Kunena - JomSocial Disabled
Kunena - Joomla Enabled: access=1 login=1
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 (United Kingdom)

Third-party components: UddeIM 3.2

Third-party SEF components: None

Plugins: Search - Kunena Search 3.0.1

Modules: Kunena Search 3.0.1