Error message

• Deprecated function: The each() function is deprecated. This message will be suppressed on further calls in menu_set_active_trail() (line 2404 of /home/foxel/public_html/automatizacija/includes/menu.inc).
• Notice: Trying to access array offset on value of type null in template_preprocess_dc_ajax_shopping_cart_teaser() (line 636 of /home/foxel/public_html/automatizacija/sites/all/modules/dc_ajax_add_cart/dc_ajax_add_cart.module).
• Deprecated function: implode(): Passing glue string after array is deprecated. Swap the parameters in drupal_get_feeds() (line 395 of /home/foxel/public_html/automatizacija/includes/common.inc).