Posts are printed twice

get_template_part( 'content', get_post_format() ); includes a template part in your theme where it echoes out the content again. Commenting it out should fix that.

<?php
// get_template_part( 'content', get_post_format() );
endwhile;
twentyfourteen_paging_nav();

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