Post Format single-loop.php using get_template_part

You are missing a comma in the arguments for get_template_part.

Instead of <?php get_template_part( 'news' 'video' ); ?> it should be <?php get_template_part( 'news','video' ); ?>

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)