Alivgon

let modalForm = document.querySelector('.modal form');

wpcf7.init(modalForm);
if (wpcf7.cached) wpcf7.refill(modalForm);

<?php $project_gallery = get_field('slajder'); ?>
<div class="row">
    <?php if ($project_gallery): ?>
        <div class="col-xl-8 col-lg-7 col-12">
            <div class="project-slider">
                <div class="project-slider__content" id="project-slider">
                    <?php foreach($project_gallery as $item) : ?>
                        <div class="project-slider__slide">
                            <?php if ($item['type'] === 'image') : ?>
                                <img src="<?php echo esc_url($item['url']); ?>" alt="<?php echo esc_attr($item['alt']); ?>" class="project-slider__image">
                            <?php elseif ($item['type'] === 'video') : ?>
                                <video controls="" autoplay="" name="media" src="<?php echo esc_url($item['url']); ?>" type="video/mp4" class="project-slider__image"></video>
                            <?php endif; ?>
                        </div>
                    <?php endforeach; ?>
                </div>
            </div>
        </div>
    <?php endif; ?>
</div>