As alexandrosc2 has note, after you make all replace of qtrans_ to ppqtrans_ you need to change also on row 262 the line
from
(!is_plugin_active(‘qtranslate/qtranslate.php’) &&
to
(!is_plugin_active(‘qtranslate-xp/ppqtranslate.php’) &&
I also follow his direction and all is fine (thanks alexandrosc2 🙂 )
