Please add the below CSS codes to remove the meta tags.

.entry-meta .byline {
    display: none;
}

.entry-footer {
    display: none;
}

Thank you

You did and outstanding job, Nice to know that your problem is solved.
Thank you so much for sharing your answer.

Regards

Hello jpguess,
Can you please provide your site URL. We will try to find the solutions on your site and provide the best solutions.

Regards

Hello Eichendorffschule Angelmodde,
Thank you so much for your question regarding our theme. Can you please provide your site Login details(through Email) so chat we can check the codes and help to enable the site title and tagline.
Waiting for your email.

Thank you

Hello jpguess,
Thank you so much for using our theme Education Base. Please check the code for height on style.css line 965 and change the height of the slider section.

.owl-wrapper-outer, .image-slider-wrapper .owl-item {
height: 73vh !important;
}

You will find the similar code there. Change the value based on your needed size.

Regards
Acme Supports

Hello cule4life,
Please replace the code <a class="btn btn-primary" href="<?php echo $button_url;?>"> to <a class="btn btn-primary" href="<?php echo $button_url;?>" target ="_blank" > line 173 of acme-featured.php file. Please check once by adding this code. Let us know, if you have any query.

Regards

If you are not able to customize the theme codes, please add the below CSS codes on Appearance > Customize > Additional CSS

.widget .blog-item article.post .content-wrapper {
    pointer-events: none;
}

Hope, this will help you to remove the clickable on that section.

Thank you

Hello cule4life,
Thank you so much for using our theme MercantilePro. AT Post Column widget is designed for blog post display and we think that the blog post will have the clickable content. If you don’t need the link, you can customize the theme. Find the widget codes on acmethemes/sidebar-widget/acme-col-posts.php file.
Let us know if you have any confusion.

Regards