New answers tagged fatal-error
If none of this works I would suggest reinstalling WordPress. When you completed the site did you back it up? You could restore from a known good backup if you have one.
There is no need to call any class if you really need to call vn_get_post_form function in page or post just call like this <?php $group_id1=1;//change your id return vn_get_post_form( $group_id1 ); ?> or <?php $group_id1=1;//change your id vn_get_post_form( $group_id1 ); ?>
I'm using WordPress 4.0.1 You need to update WordPress to the latest version. the_archive_title() was added in version 4.1.
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