Dougless

Hi James.

Thank you for your reply. I appreciate it.
However, a manual upgrade was not the solution i was hoping for, but the thought had crossed my mind and you are probably right.

I am hosting WordPress myself using an Ubuntu solution. I am wondering, if the issue could be caused by missing file permission or missing group rights within the ‘Include’ folder, since WordPress is unable to copy the PHP file.

Has anybody else experienced this issue yet?

Thank you very much, Istein.

I totally made myself blind on the code that I have.

You are much appreciated.

Would you happen to know why my database are storing the same data twice?

It is duplicating the rows when entered within the form.

I solved the issue with the following codesnippet:

<?php
						query_posts('posts_per_page=1');
							while(have_posts()) : the_post(); ?>
								<div class="img-responsive">
									<a href="<?php the_permalink(); ?>"><?php
									if ( has_post_thumbnail() ) { // check if the post has a Post Thumbnail assigned to it.
										the_post_thumbnail();
									}
									?></a>
								</div>
					<?php endwhile; wp_reset_query(); ?>