It means that it has been digitized and is now available through archive services such as JSTOR and others that libraries use to make works readily available. And probably also that it has gone to the abstracting services.
It means that it has been made available online for public view where researchers can found it anytime on journal site by going to the respective volume and issue.
It may also means that the paper has been rejected/declined. You may check through your Spam messages to see if a rejection message has been sent to you.
It shows that status to you because your paper has moved to production, and the files that you had submitted are archived on the ScholarOne system. This is done to keep the files safe.
As per the file storage settings, the files were automatically archived on 14-Feb-2021 and they are archived for 2 years prior to deletion from the system.
In case you lose your files, you will be able to retract them in this given 2 years period but not after that.