Spam website (doctoraccess.eu) when I connect

You need to start working your way through these resources:

How to clean and fix hacked WP blog:
https://codex.www.ads-software.com/FAQ_My_site_was_hacked
https://www.ads-software.com/support/topic/268083#post-1065779
https://smackdown.blogsblogsblogs.com/2008/06/24/how-to-completely-clean-your-hacked-wordpress-installation/
https://ottopress.com/2009/hacked-wordpress-backdoors/
https://www.jtpratt.com/how-to-fix-a-hacked-wordpress-blog/
https://sakinshrestha.com/wordpress/fix-if-your-wordpress-site-is-hacked/
https://www.wpbeginner.com/wp-tutorials/how-to-find-a-backdoor-in-a-hacked-wordpress-site-and-fix-it/

Harden your WP installation: https://codex.www.ads-software.com/Hardening_WordPress

Additional Resources:
https://sitecheck.sucuri.net/scanner/
https://www.unmaskparasites.com/
https://blog.sucuri.net/2012/03/wordpress-understanding-its-true-vulnerability.html

Try this tips to help protect your site , also try to use a wordpress security plugin to see whats causing the problem.
https://wpspec.com/six-tips-to-help-protect-your-wordpress-website-from-hackers/

At this stage, since you have nothing (or very little) invested in your site’s setup, I suggest that you will save a lot of time if you delete your site and start again.
As advised install a security plugin.