Share option not available!



Dear Friends

I have installed the oC in ubuntu server step by step from this web site

Every thing works file except when Im trying to share a follder there is no option for that.

Please have a look at screenshots.
Vert strange while I have installed oC 8 and there is a share button.



Sharing settings


Did you enable the file-sharing app?

Share by Link Disapear After Upgrade/Install Owncloud 10.0.3
Lost share option in folder properties


Very strange that I have disabled!!

Thnx a lot!


where can i find the app to activate it? Thanks