Show title bar only on archives / hide it on all posts and pages

You can use is_post_type_archive(), which is one of the many conditional tags in WordPress:

if ( is_post_type_archive( 'your_post_type' ) ) {
  // show the title bar
}
// else, just do nothing

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