Warning: include_once(): Failed opening

  • Patryk

    (@patryktarachon)


    2 years, 6 months ago

    Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, class “CMB2_Hookup” not found in

    wp-content/plugins/wp-quiz/vendor/cmb2/cmb2/includes/helper-functions.php on line 44

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