Crash Joomla when user join group

The newest plugin PhocaDownload is installed. There a newest version for JEventsinstead of 2.0.7 (2.0.

Sel Nantais Sel du don
Joomla 1.7.2 1.7.2
CB 1.7 1.7
Groupjive 2.4 2.4
Kunena 1.6.5 N/A
Phoca Download 2.1.1 2.1.3 2.0.0 RC2 2.1.3
Phoca Gallery 3.0.2 3.1 3.0.0 RC4 3.1
Jevents v2.0.7 Stable v2.0.7 Stable

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Have you reproduce it. Must I create a bug ?

PHP: 5.2.14

MySQL: 5.1.48

cPanel: 11.26.9 Build 48422

Theme: cPanel X v3

Operating system: Linux

Apache: 2.2.16 (Unix)

PERL: 5.8.8

Path to PERL /usr/bin/perl

Path to sendmail /usr/sbin/sendmail

Kernel version 2.6.18-194.3.1.el5PAE

Machine Type i686

Using the test user you provided was able to successfully join 2 groups on your site. I can not duplicate your issue locally or on your own site. Please be more specific if the issue is affecting a single group. Notice the test user now belongs to "Lustreuse" and "Compresseur" as those are the 2 groups I tested joining.

You do appear to have a problem in your template. It's just a notice, but you should still inform your template developer.

Notice: Undefined variable: editmode in templates/orangelab/tools.php on line 9

Ok for the template but I have the same problem with another site " selidaritesnantaises.org/selnantais/ " in the same plateform with a different template (different company).

Using the test user you provided was able to successfully join 2 groups on your site. I can not duplicate your issue locally or on your own site.
-> Have you a netmeeting or something like this : I could to see you online.
-> The problem can be reproduce every time when a member write his message in the wall plugin just after join the group.

What's your browser and his version ?

Thanks for your help

I've tested creating a wall post and the wall posts are being made just fine, but for some reason the user is immediately logged out after posting. Is there something installed on both sites besides CB and GJ? This may help in finding what could be causing the logout. I've no idea what could cause the logout.