Subdomain Multisite displays 404 when creating new site

Hi guys,
I seem to be having an issue with my multisite. I created a few sites successfully on the subdomain multisite but now it does not seem to work anymore.

When I create the site it sends an email and shows it created in the dashboard but when you type in the url it shows a 404 error. Looking in the file manager I don't see the folder created for the site.

Any ideas?

I have enabled access for you to take a look

Thanks