Support » Plugin: WP SEO Structured Data Schema » Warning: Invalid argument supplied for foreach()…

  • Resolved michalbws

    (@michalbws)


    Hi,
    I have installed wp seo structured data schema plugin on my site, but when I try to publish new or update existing page I got several (exactly 8) errors:
    Warning: Invalid argument supplied for foreach() in …/public/wp-content/plugins/wp-seo-structured-data-schema/lib/classes/KcSeoMetaData.php on line 116

    Additionally below there are:
    Warning: Cannot modify header information – headers already sent by (output started at …/public/wp-content/plugins/wp-seo-structured-data-schema/lib/classes/KcSeoMetaData.php:116) in …/public/wp-admin/post.php on line 198

    Warning: Cannot modify header information – headers already sent by (output started at …/public/wp-content/plugins/wp-seo-structured-data-schema/lib/classes/KcSeoMetaData.php:116) in …/public/wp-includes/pluggable.php on line 1219

    The page itself is published (or updated), but it gets annoying everytime I update.

    Can you please tell me how can I fix this?

    Thanks
    Michal

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