Chyba při vstupu do administrace

Dobrý den,

při vstupu do administrace webu mi ukazuje tuto chybu.

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Warning: „continue 2“ targeting switch is equivalent to „break 2“. Did you mean to use „continue 3“? in /data/web/virtuals/209093/virtual/www/domains/petravronkova.cz/wp-content/plugins/revslider/includes/operations.class.php on line 2862

Warning: Cannot modify header information – headers already sent by (output started at /data/web/virtuals/209093/virtual/www/domains/petravronkova.cz/wp-content/plugins/revslider/includes/operations.class.php:2858) in /data/web/virtuals/209093/virtual/www/domains/petravronkova.cz/wp-includes/pluggable.php on line 1340

Warning: Cannot modify header information – headers already sent by (output started at /data/web/virtuals/209093/virtual/www/domains/petravronkova.cz/wp-content/plugins/revslider/includes/operations.class.php:2858) in /data/web/virtuals/209093/virtual/www/domains/petravronkova.cz/wp-includes/pluggable.php on line 1343

Můžete mi prosím poradit co s ní?

děkuji

PV