Error when trying to access admin panel

  • Unknown's avatar
    cherrymountains · Member ·

    To whom it may concern,

    I have ran into an issue when trying to access my admin panel to make changes to my website.
    I attempt to login to wp-admin, but I receive the following error, not allowing me to access my content:
    Fatal error: Call to undefined method WP_Screen::is_block_editor() in /home/content/31/11918431/html/wp-admin/admin-header.php on line 178

    Any advise on this matter would be greatly appreciated.

    Kind regards,

    Ingrid Kersbergen

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