Clickable elements too close together

Hello dear friends, at first thank you for this great catchbox theme, I love it. Since few days I got error from google’s mobile-friendly test „Clickable elements too close together“. The link to Website http://t1p.de/1ea2 I think this is because of the area for wp-cumulus with all of the listed tags. I am wordpress beginner. How can I solve this? maybe any css code which I can past in?