I use ari-quiz 3.6.16 on jommla 2.5.8 and it works on my developement site (wamp on windows 64bits).
transfert on the public site works but, request to import /export CSV don't work, add quizz: OK but add questions: nothing (command send, but return to the previous screen)
"Strange" when I set on joomla configuration "debut systeme" yes, nothing new on the public site, but on my developement site, when I click on "quizzes", it just doesn't fid the quizzes ! I switch off "systeme debug" and it works OK (on the devlopement site).
I check the php.ini on the development and public site, but see no parameter which can explain
Upgrade to joomla2.5.28, same situation
any idea?

Hello,

It can be a problem with a 3rd party extension. For example with "AJAX Toggler" plugin. We can investigate the problem in more details if you send a temporary access to your J! backend by email.

Regards,
ARI Soft