Welcome, etc.
You won't be able to suggest your site until the technical problems are fixed, and you can see from the
Announcement that it will be updated as soon as there is any news. However, you can still browse the cached version of ODP on the web, and find a category where similar sites are listed. That would be a good place to suggest yours.
And don't worry. If an editor knows of a more suitable category, he will move it when he reviews your site (although of course there is no knowing when that might be, as you will see in the
FAQ).