Feedback to my Online-Shop (intern at a company)

URL: https://restposten.energiezaehlershop.de/
Purpose: technical Online-Shop
Technologies Used: Wordpress, Enfold

I am an intern at a company in germany, I am 18 years old and that’s the first time i worked with Wordpress or anything related to that. I am by far not a professional. I appreciate any feedback on my website and maybe some suggestions on what I can improve on!

Greetings Oliver