error creating social group

[محروم.كوم]

Hello,
I have enabled social groups and created my first social group. When clicking save I obtain, the following error:
Quote:
Warning: tempnam() [function.tempnam]: open_basedir restriction in effect. File() is not within the allowed path(s): (/home/***/usr/lib/php:/usr/local/lib/php:/tmp) in [path]/includes/class_dm_socialgroupicon.php on line 165


Warning: fopen() [function.fopen]: Filename cannot be empty in [path]/includes/class_image.php on line 333

But it after a couple of seconds it dissapear and everything seems to be OK (not completely tested yet).
What do I have to do with it?
Thank you __DEFINE_LIKE_SHARE__