Error message

• Deprecated function: session_set_save_handler(): Providing individual callbacks instead of an object implementing SessionHandlerInterface is deprecated in drupal_session_initialize() (line 245 of includes/session.inc).
• Deprecated function: Creation of dynamic property NodeGalleryRelationshipType::$id is deprecated in EntityAPIController->load() (line 249 of sites/all/modules/entity/includes/entity.controller.inc).
• Deprecated function: Creation of dynamic property NodeGalleryRelationshipType::$label is deprecated in EntityAPIController->load() (line 249 of sites/all/modules/entity/includes/entity.controller.inc).
• Deprecated function: Creation of dynamic property NodeGalleryRelationshipType::$filefield_name is deprecated in EntityAPIController->load() (line 249 of sites/all/modules/entity/includes/entity.controller.inc).
• Deprecated function: Creation of dynamic property NodeGalleryRelationshipType::$settings is deprecated in EntityAPIController->load() (line 249 of sites/all/modules/entity/includes/entity.controller.inc).
• Deprecated function: Creation of dynamic property NodeGalleryRelationshipType::$gallery_types is deprecated in NodeGalleryRelationshipType->setUp() (line 1406 of sites/all/modules/node_gallery/node_gallery_api.module).
• Deprecated function: Creation of dynamic property NodeGalleryRelationshipType::$item_types is deprecated in NodeGalleryRelationshipType->setUp() (line 1407 of sites/all/modules/node_gallery/node_gallery_api.module).
• Deprecated function: Creation of dynamic property NodeGalleryRelationshipType::$rdf_mapping is deprecated in rdf_entity_load() (line 412 of modules/rdf/rdf.module).