What does it mean when a manuscript submission systems lists the status of a paper as "Archived"?
This will depend on what system the journal is using, what processes the editors are following, what that editor in question was thinking that day, and maybe other factors.

Point being that there is no way for you -- or in fact, anyone -- to know for sure. You have two choices: 


Ask the editor.
Have patience.


I would suggest the second. You will get a notification in due time when someone has made a decision. You can also look up what turn-around time the journal strives for (say, 3 months) and then round about that time email the editor if you haven't heard back until then. But after just a single day, the only reasonable answer is: Have patience!