I tried to delete the TD Composer Plugin a few times and reinstall. Nothing changed

Ok great. Thank you for your fast replie.

Hello,

Ive purchased the Newspaper 8.8 theme a few minutes ago at Envato Market, downloaded it directly from Envato to my copmuter and checked it for malicious code before uploading to my webserver. It says that it contains the following issues:
Security breaches : Use of base64_decode()
Security breaches : Use of base64_encode()
Presence of iframes : iframes are sometimes used to load unwanted adverts and malicious code on another site
Malware : Operations on file system
Malware : Network operations
Admin menu : Themes should use add_theme_page() for adding admin pages.

Is it safe to install your theme on my new Webserver? Can this code be used to hack my WordPress site or anything like this?

Thanks in advance!
Greetings