Warning: Invalid argument supplied for foreach() in libraries_invoke() (regel 161 van /home/kraitierienea/www/e-learning-prod/web/sites/all/modules/contrib/libraries/libraries.module).
Notice: Undefined index: installed in libraries_load() (regel 621 van /home/kraitierienea/www/e-learning-prod/web/sites/all/modules/contrib/libraries/libraries.module).
