Warning filling up debug file

  • Resolved wynot

    (@wynot)


    4 days, 15 hours ago

    Hi – My debug.log file is filling up with this warning. Can we please address this? Thanks!

    [31-Aug-2026 14:22:35 UTC] PHP Warning: Undefined array key 3 in /home/xxxxxxxxx/xxxxxxxxx/public_html/wp-content/plugins/duplicator/classes/ui/class.ui.screen.base.php on line 60
    [31-Aug-2026 14:22:35 UTC] PHP Stack trace:
    [31-Aug-2026 14:22:35 UTC] PHP 1. {main}() /home/876507.cloudw/xxxxxxxxx/xxxxxxxxxaysapps.com/rpraactnyc/public_html/wp-admin/admin.php:0
    [31-Aug-2026 14:22:35 UTC] PHP 2. require_once() /home/xxxxxxxxx/xxxxxxxxx/public_html/wp-admin/admin.php:244
    [31-Aug-2026 14:22:35 UTC] PHP 3. do_action($hook_name = ‘admin_head’) /home/xxxxxxxxx/xxxxxxxxx/public_html/wp-admin/admin-header.php:168
    [31-Aug-2026 14:22:35 UTC] PHP 4. WP_Hook->do_action($args = [0 => ”]) /home/xxxxxxxxx/xxxxxxxxx/public_html/wp-includes/plugin.php:523
    [31-Aug-2026 14:22:35 UTC] PHP 5. WP_Hook->apply_filters($value = ”, $args = [0 => ”]) /home/xxxxxxxxx/xxxxxxxxx/public_html/wp-includes/class-wp-hook.php:377
    [31-Aug-2026 14:22:35 UTC] PHP 6. DUP_UI_Screen::getCustomCss(”) /home/xxxxxxxxx/xxxxxxxxx/public_html/wp-includes/class-wp-hook.php:353

    The page I need help with: [log in to see the link]

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  • Plugin Support skfaysalalom

    (@flossyfaysal)

    3 days, 20 hours ago

    Hi @wynot,

    Thanks for reporting this, and great news, we’ve already identified the root cause and reproduced this on our end!

    Here’s what’s happening: WordPress 7.1 made the “Modern” admin color scheme the default. Unlike every other color scheme (which has 4 colors), “Modern” only has 3. Duplicator’s class.ui.screen.base.php on line 60 reads $colorScheme->colors[3], expecting a 4th color that “Modern” doesn’t have, which triggers this warning. Since “Modern” has been available since WP 5.7 but rarely used until now, this issue wasn’t surfaced until it became the new default in 7.1.

    The good news is this is purely a warning being logged and doesn’t affect functionality or your backups. Note: Duplicator Pro isn’t affected by this issue.

    We’ve already created a task to fix this, and it will be resolved in an upcoming release. No need to worry in the meantime!

    Thanks again for flagging this and for your patience.

Viewing 1 replies (of 1 total)

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