url https://theme.co/forum/t/php-notice-undefined-index-selector-in-wp-content-themes-pro-cornerstone-includes-classes-documents-content-php-on-line-90/104276

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PHP Notice: Undefined index: selector in /wp-content/themes/pro ...

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Apr 3, 2023 · Hi, I'm running into this issue on a multisite install we have. I manually updated the theme to make sure that it didn't lock up with the ...