Users shown as logged out

Mysql 5.0.84
PHP 5.2.9
Webserver Apache/2.2.3 (CentOS)
Joomla! 2.5.0 Stable
CB 1.7.1
CB Subs 1.2.2

After upgrade to Joomla 2.5.0, everything is fine and working well. Only one issue with CB login. When a user is logged in and moves to the homepage or one menu item, the CB Login, shows the login fields. So it looks like the user is not logged in. Clicking on another link in the menu, gives the right page and shows logged in again (without having to login).

Also when viewing pages after session timeout, it does not show a 404 page, but shows the page, without the content for registered users only.

I am not sure what went wrong here.

NB.
Showed site in debugmode and this is what I got on the CB page.

500 - JDatabaseMySQL::query: 1146 - Table 'name_joom.database_gj_groups' doesn't exist SQL=select u.id, u.username, u.name, c.avatar, a.id AS groupid, a.name AS grouptitle, a.descr, a.logo AS groupimage, r.date AS actidate FROM name_users u, name_comprofiler c, name_gj_groups a, name_gj_users r WHERE u.id=c.user_id and c.avatarapproved = 1 and u.id=r.id_user and a.id=r.id_group AND r.status=1 order by r.date desc limit 10

I asume I have to make this table in my mysql database, but my mysql knowledge is limited. Also when the debugmode is on, the frontpage shows me logged in, like it should.

Something is trying to query GJ 1.8s database. Did you install GJ 2.x ontop of GJ 1.8 CB plugin? You need to first uninstall GJ 1.8 CB plugin then install GJ 2.x. If not please check your modules or other extensions as something is trying to query a table that does not exist.

Thanks for your reply Krileon, I unfortunately needed to completely remove my joomla and CB installation. Something went terribly wrong and whole server stopped working when only logging in to the backend. I am installing it all over again. So hope it will work this time.

Please do let us know if you run into any issues. I recommend making a backup before/after each extension installation (Akeeba works great for this) that way you don't have total loss if 1 extension conflicts real bad.