I have found a bug after the upgrading the Wordpress to the last version of the software 3.9.
I get this error:
Thu Apr 17 17:21:52 2014] [warn] mod_fcgid: stderr: PHP Catchable fatal error: Object of class WP_Post could not be converted to string in /wp-content/plugins/qtranslate/qtranslate_core.php on line 455, referer: http://www.mywebsite.com/
Why do this happen?
Solved!!
You have to remove the "$before." in qtranslate_core.php file from the last line, qtranslate works here with WP 3.9 !
so the result must be:
return strftime($format, $date).$after;
We will wait the qTranslate upgrade!
thanks