[solved] SVN #7078 Problem with article - Joomla! Forum - community, help and support

hi, have problems articles(adding, editing, deleting). if add new article, automatically logged out after clicking save or apply.
i http://localhost/joomla/administrator/index.php?option=com_content§ionid=0

or if try delete article, automatically logged out.
i http://localhost/joomla/administrator/index.php?option=com_content&task=

can me? thank you.

also happened when trying use plugin manager. list nights build.

pieter