Notice: Use of undefined constant ABSPATH - assumed 'ABSPATH' in X:\wordpress\Nieuwe map\wp-includes\class-wp-customize-panel.php on line 382

Notice: Use of undefined constant WPINC - assumed 'WPINC' in X:\wordpress\Nieuwe map\wp-includes\class-wp-customize-panel.php on line 382

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Fatal error: require_once(): Failed opening required 'ABSPATHWPINC/customize/class-wp-customize-nav-menus-panel.php' (include_path='.;C:\php\pear') in X:\wordpress\Nieuwe map\wp-includes\class-wp-customize-panel.php on line 382