How to fix Fatal error after upgrade

  • Unknown's avatar
    ehansmann · Member ·

    I upgraded the other day and now I cannot access my Dashboard to make any changes. After login, I receive this message: Fatal error: Call to undefined function wp_removable_query_args() in /homepages/25/d135663081/htdocs/clickandbuilds/WordPress/DesignBuildOp/wp-admin/includes/misc.php on line 900

    I really need help to fix this issue.

    The blog I need help with is: (visible only to logged in users)

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