CB 1.8 : Can't save any change in user panel.

Hello everybody,

I have strange behaviour in my CB extension.
Last week, I connected to accept a new user who created a profil.
I went in his panel in CB, confirmed the user, and clicked save.
But nothing happen. I click cancel, nothing happen.
I can only go page back until something is clicable.

I tryed yesterday to upgrade from 1.7.1 to 1.8, but the problem is still there.
I swear I did not changed or installed anything else as my knowledge in web tech is really low so I avoid any complication

I tryed some stuff found here in the forum. When I activate the debug in Joomla, I get these kind of lines in CB pages :

Strict Standards: Non-static method JLoader::import() should not be called statically in /var/www/legtux.org/users/cdpisj/libraries/loader.php on line 186

Strict Standards: Non-static method JApplicationHelper::getPath() should not be called statically, assuming $this from incompatible context in /var/www/legtux.org/users/cdpisj/libraries/joomla/application/component/helper.php on line 168

Strict Standards: Non-static method JRequest::getCmd() should not be called statically, assuming $this from incompatible context in /var/www/legtux.org/users/cdpisj/libraries/joomla/application/helper.php on line 112

Strict Standards: Non-static method JRequest::getVar() should not be called statically, assuming $this from incompatible context in /var/www/legtux.org/users/cdpisj/libraries/joomla/environment/request.php on line 255

Strict Standards: Non-static method JRequest::_cleanVar() should not be called statically, assuming $this from incompatible context in /var/www/legtux.org/users/cdpisj/libraries/joomla/environment/request.php on line 134

Strict Standards: Non-static method JFilterInput::getInstance() should not be called statically, assuming $this from incompatible context in /var/www/legtux.org/users/cdpisj/libraries/joomla/environment/request.php on line 577

I have pages and pages of these messages but I really don't understand what this mean.
As nothing happen when I click save, I don't see anymore mesages.

If someone could help me fixing this.
That would be great.
Thx in advance.
B²

Sorry for bringing this thread up, but I'm totally lost.
It's now weeks I'm trying to fix this but nothing work.
I also tryed to have a look in the database to update manually the records but considering the risks I prefered to step back.

Is there any way I can 'export' the entire user list to recreate the web site from scratch and then re-import all the users ?

If any one could have a look at this, I would grandly appreciate.
Thx.
B²

Maybe upgrade to CB 1.9 and try again.