• Hi,

    I entered in my WP and suddendly got this error, so I can’t write posts. I can’t write in pages neither. Could you help me with this, please?

    I had this error:
    Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘wp_richedit_pre’ not found or invalid function name in /home/milabore/public_html/wp-includes/plugin.php on line 213

    I’ll appreciate your help. Thanks!

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  • Hello,

    I am having the same error.
    I have tried to update WordPress from version 4.2.2 to 4.3.1.
    I have used the one click update but it stopped along the way and produced a server error. Which makes me believe that the issue comes from an incomplete update.
    This is the error I get while trying to update:
    Could not copy file.: wp-includes/class-wp-customize-nav-menus.php
    Where you trying to do the same?
    The website is still showing all the posts – the content is still in the databases – but it doesn’t show when I try to edit a post in the rich editor.

    If anyone could help, much appreciated! Thanks!

    Kind Regards

    David

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