ERROR: Content Element with uid "34918" and type "image" has no rendering definition!

ERROR: Content Element with uid "34821" and type "shortcut" has no rendering definition!

ERROR: Content Element with uid "34825" and type "gridelements_pi1" has no rendering definition!

ERROR: Content Element with uid "34820" and type "text" has no rendering definition!

ERROR: Content Element with uid "34823" and type "gridelements_pi1" has no rendering definition!

ERROR: Content Element with uid "34824" and type "list" has no rendering definition!