Php problem: Images don't load in sidebar and posts

Hello!

I hope somebody can actually help me with this PHP disaster which I can’t resolve myself. I know quite some things about wordpress, but PHP is a language which I don’t understand unfortunately :(.

I’m creating a recruiting board page where personal trainers and companies can meet. For example: A company can post a job and a personal trainer can post his or her profile and resume. I really would like to see the most recent job and coach resume in the sidebar (http://portal.steptomilstone.nl) but the thumbnail function isn’t working. If we look to the pages http://portal.steptomilestone.nl/job/back-end-developer/ and http://portal.steptomilestone.nl/candidate/abu-antar-3/ we can see that the pictures also aren’t loading inside the frame/post.

What am I doing wrong? I’m using the VT_resizer function to create the thumbnails and I guess this function works because of the page http://portal.steptomilestone.nl/company/industry-llc/ where everything works the way it should be.

I’ve searched in my FTP host and found that in /theme/include/ the php code was for “showing” the images.

I got this two codes:

<?php if($item_img1):?>
            <div class="photo">
                <div class="company-photo-container"><img src="<?php echo $item_img1; ?>" alt="" height="340"/></div>
            </div>
        <?php endif; ?>
        <div class="company-info clearfix">
            <div class="company-info-social">
                <?php  if ( has_post_thumbnail() ) { $large_image_url = wp_get_attachment_image_src( get_post_thumbnail_id(), 'full'); ?>
                <div class="compnay-photo">
                    <img src="<?php echo vt_resizer($large_image_url[0], '200', '200'); ?>" alt="<?php the_title() ?>" title="<?php the_title(); ?>" />
                </div>
                <?php } ?>

and this one:

<div class="sidebar-container container-8"<?php if($tabs) echo ' style="background: rgba(0, 0, 0, 0);"'; ?>>
    <?php if ( has_post_thumbnail() ) { ?>
    <div class="company-page-map<?php if($tabs) echo ' margin-top-minus-20'; ?>">
        <?php $large_image_url = wp_get_attachment_image_src( get_post_thumbnail_id(), 'full'); ?>
        <div class="company-page-map-container" style="height: 245px">
            <img src="<?php echo vt_resizer($large_image_url[0], '245', '245'); ?>" alt="<?php the_title() ?>" title="<?php the_title(); ?>" />
        </div>

I don’t understand this piece of code and I’m not really really sure if this is what I should looking for.

I really hope that somebody can help me and can save me from this headache which is already keeping me busy for hours and hours.

Thanks in advance!

Kind regards

Mitchell