Notice: Trying to get property of non-object in ys_elearning_custom_block_view() (regel 451 van /home/kraitierienea/www/e-learning-prod/web/sites/all/modules/custom/ys_elearning_custom/ys_elearning_custom.module).
Notice: Trying to get property of non-object in ys_elearning_custom_block_view() (regel 458 van /home/kraitierienea/www/e-learning-prod/web/sites/all/modules/custom/ys_elearning_custom/ys_elearning_custom.module).
Notice: Trying to get property of non-object in ys_elearning_custom_block_view() (regel 462 van /home/kraitierienea/www/e-learning-prod/web/sites/all/modules/custom/ys_elearning_custom/ys_elearning_custom.module).
Notice: Trying to get property of non-object in ys_elearning_custom_block_view() (regel 482 van /home/kraitierienea/www/e-learning-prod/web/sites/all/modules/custom/ys_elearning_custom/ys_elearning_custom.module).
