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php - WordPress Ken Theme Error in Sidebar Editor - "Fatal error: Uncaught Error: Function name must be a string" - Stack Overflow
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Error: Function name must be a string in CustomElements/Core/Hooks.php - Premium Contao Themes Forum
Fatal error: Function name must be a string in ToolbarComponent.php on line 192 · Issue #134 · cakephp/debug_kit · GitHub
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