Sticky Before you post your question, read this first

I spent about 30 minutes looking at your site, edilson_w, and it's difficult for me to figure out what other Javascript library you're loading that clobbers Mootools. I suggest that you read When all else fails, try this . It may help.

You can "move back" to K 1.7.2 if you want. You need to restore your site from a backup because there is no other simpler downgrade option. Just remember, though, K 1.7.2 will only be supported until 31 Aug 2012. You have a Javascript library conflict that is causing your problem, Perhaps you should try When all else fails, try this ?

I installed Joomla 2.5.6, with no extension after I installed the latest version of Kunena and gave the following error when accessing the forum

500 Internal Server Error
Fatal Error was detected!

Fatal Error: Cannot pass parameter 2 by reference in components/com_kunena/lib/kunena.file.class.1.6.php on line 60

The error was detected in the Kunena Component.

For support click here: Kunena Support

I believe he is having some incompatibility Sun Joomla and Kunena 2.5.6.

edilson_w: Originally your problem occurred in K 1.7.2 and you posted it in If you are having problems with Kunena, please read this first . Since that time you have upgraded to K 2.0.0 (but you omitted to give us that important information).

The "Fatal Error: Cannot pass parameter 2 by reference in components/com_kunena/lib/kunena.file.class.1.6.php on line 60 error" is different! There is a separate sticky topic about that subject. See Fatal Error: Cannot pass parameter 2 by reference in components/com_kunena/lib/kunena.file.class.1.6.php on line 60 .

You still have a Javascript library conflict even with K 2.0.0.

I did another test facility in the Joomla 2.5.6 local server and a new installation Kunena com_kunena_v2.0.0_2012-06-27.

Gave the following error:
500 Internal Server Error
Fatal Error was detected!

But I informed version of Kunena, it was you who moved the topic


I still have the same conflict with K JavaScript library 2.0.0.

I am not arguing with you edilson_w. The HTTP 500 Internal Server Error is unrelated to the Javascript library issue. The HTTP 500 error is documented in a different topic and there is an answer there, too (around msg #28 of the topic I mentioned in my last reply). You need to deal with the HTTP 500 error.

You have a Javascript library conflict caused by something you have installed on your website. I do not know what that thing is.