ERROR: Content Element with uid "3052" and type "newsletterbuilder_content" has no rendering definition!

ERROR: Content Element with uid "3051" and type "newsletterbuilder_content" has no rendering definition!

ERROR: Content Element with uid "3050" and type "newsletterbuilder_record" has no rendering definition!

ERROR: Content Element with uid "3049" and type "newsletterbuilder_record" has no rendering definition!

ERROR: Content Element with uid "3048" and type "newsletterbuilder_content" has no rendering definition!