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Another issues:

Warning: call_user_func_array() expects parameter 1 to be a valid callback, class Markup_Markdown does not have a method register_settings_menu in /home/g/glav/public_html/wp-includes/class-wp-hook.php on line 307 Warning: Cannot modify header information – headers already sent by (output started at /home/g/glav/public_html/wp-content/plugins/markup-markdown/markup-markdown.php:

Problem with markup-markdown.php. There is a small space at the beginning of the file, before php tag

Current:

 <php
/**
 * Markup Markdown

Expected (without the first space)

<php
/**
 * Markup Markdown

• This topic was modified 2 years, 4 months ago by Denis.