Hi Marc Alexander Nieding,
After reviewing URL and complete details I can surely assist you with code work to fix this issues completely. I know you looking for 100% freelancer who can directly work with you.
Sharing few links of my development along with work details.
[login to view URL] (Real Estate - WordPress / PHP)
AIOS Starter WordPress Theme, Theme Customization, Country list, Social Icons, Property Listings features and functionalities, Communities, Blog, Categories, subcategories, custom plugin development etc. 3rd party website development work.
[login to view URL] (Women's Causal wear - WordPress / WooCommerce)
Australian Based WordPress WooCommerce website Normal E-Commerce Online Shopping. Collections, Categories, Sub-Cate. , Cart, Payment Gateway, Blogs, Social Media. Complete Website builds using XStore (theme) WordPress WooCommerce with customization work in it.
[login to view URL] (Personal Website - WordPress / Gravity Froms)
A Complete website built in WordPress, PHP and using Gravity form, Blog pages, Events Podcast, books, social icons etc.
Message me we can discuss and begin immediately.
Regards,