Blogs won't post! T-T

Hello I've been trying to post a blog but every time I go to post it and go to view it I get "Page not Found" Is anyone able to post a blog? Please help

I've figured out the problem. I was adding screenshots to my blog and it didn't like that. I don't know if there is a way to add screenshots but just remove the screenshots if it's giving you the same issue.

Thank you!