joomla port - gallery2 picture bridge - fatal error

Fatal error: Undefined class name 'galleryembed' in xyz\mod_g2bridge_image.php on line 71

if that seems familiar to you you have to change the gallery2 module settings in your joomla-administration (thx to joomlaportal.de)

• Gallery 2 Path
• Gallery 2 Url
• Login URL

due to the Gallery2 FAQ (How can I move my gallery installation from one server to another?) a port of my local Gallery2 version would be to complex therefore i decided to re-install it on the isp-server and change the theme afterwards ...