http redirection problem – can’t login

Hi. Really hope someone can help with a problem I’ve been trying to fix for several hours.

Site in question is: http://www.lisasell.co.uk/

Firstly, content is failing to load due to them being served from https://www.lisasell.co.uk/, which is no longer an option after I disabled SSL from Cloudflare. I have changed the nameservers back to their defaults, so the site isn’t going through Cloudflare any more.

Also, posts point to their https:// versions from the homepage, not http://. Worst still, I can not login!

http://www.lisasell.co.uk/wp-login.php works, but when I try to login, it redirects to https://www.lisasell.co.uk/wp-login.php with “The requested URL /wp-login.php was not found on this server” message.

Any assistance would be greatly appreciated. I’m truly stuck and can’t fix this! Thanks.

The page I need help with: [log in to see the link]