Database warning says I can only have one category?

[Bendensin]

I'm trying to duplicate the Articles system to use as a travel guide. I've been successful so far. But in Admin CP ==> Pages ==> Databases => (My Database), it is showing this warning:

You have 24 categories in this database. You can only have 1 category to store records in the database directly.

Here's a screenshot... can someone please tell me what this means?

[opentype]

Basically just what it says. By default there is a switch to change between categories or no categories, but since you have categories, you can't turn off categories anymore. But thats probably okay for you. Its just an explanation and you don't need to worry about it.

[Bendensin]

Thanks OpenType!