undefined function qtrans_convertURL

Hi all. I have searched forum but did not found anything about this error. I have bought "Adventurous Pro" Theme but on my site it not working. And problem seems to be with qTranslate Plugin. Although free "Adventorous" works OK with it. Pro Theme shows only header and this error: Fatal error: Call to undefined function qtrans_convertURL() in /data/web/virtuals/96667/virtual/www/wp-content/themes/adventurous-pro/inc/adventurous-qtranslate.php on line 24 I have bought Adventurous Pro expecially because you addvertise that it is fully compatible with qTranslate. But somehow it looks like not exactly true. My site uses WP 4.2.2, qTranslate-X 3.3, WP SEO & qTranslate-X 1.0. I tried also without SEO & qTrans but with the same result. Therefore I had to switch back to free version again. Thanks Josef Machytka www.galerie-katerina.org