stupidity!

I believe it is not your connection, but that of the sites error. This sort of problem is normal on this site, as they sometimes do some "monthly cleaning" of posts (by deleting less quality posts and those that violates this sites guidelines). There's also some upgrading happening, to make this site more manueverable and easy to use by us members. If in-case you double-posted, you can always message the admin and ask them if they can delete the other post you wish to be removed (just make sure that they haven't received any response yet).

It should be ok. I hate when that happens too. It doesn't happen bery pften but when it does, it drives me crazy and makes me hope that Mylot won't delete me because of it. You should be okay though.