Text Editor disable after installation the plugin

It is very likey another plugin is causing trouble with mqTranslate.

What are the other installed plugins?

I used all these plugin, but I need the plugin compatible with all the plugin. Thanks

What plugins?

Oh Sorry they are: All In One SEO Pack, Black Studio TinyMCE Widget, Flag Counter Widget, Kiwi Logo Carousel, Simple:Press, XCloner, Yendif Player, Youtube Channel Gallery

Try disabling Black Studio TinyMCE Widget. I suppose the problem comes from here.
You can also try qTranslate-X, which is another fork of qTranslate less prone to TinyMCE conflicts.

I try all those thing but it still cannot see it working, so do you think about the other javascript it also effect?

and for qTranslate-X after installation they disable Add Media button and Text Editor, too

I got this problem: the editor window text is white on white.

I’ve deactivated all plugins except mqTranslate, the problem persists.

When I load the post edition page, I see these errors in the browser console:
TypeError: a.widget is not a function in load-scripts.php:843
TypeError: e is undefined in load-scripts.php:841

I think mqTranslate might be based on an old version of jquery and is calling a deprecated function.

I found a temporary fix online, adding this line to my wp-config.php seems to allow content editing.
define(‘CONCATENATE_SCRIPTS’,false);

I hope the mqTranslate team can solve this.