Draft duplicates when trying to publish a post

Whenever I try to post, it goes to a blank page instead of going back to the admin page. When I type out the URL to the site, the post is there but I see many duplicates in the draft. I can’t delete the drafts because it always takes me to a white page. When I go back, they’re still all there. The more I post, the more they save in the draft.

HELP PLEASE!