Wat does it mean if my kaspersky anti-virus says that the databases are out of date? how to fix?

I think your update timing got caught between two subsequent update releases. In other words, part of the previous update were downloaded, interrupted and when it got the chance to continue, a newer update came up. I suggest that you roll back to a previous update or in the Start > Control Panel > Add or Remove Programs, select Kaspersky. Instead of uninstalling, select Repair. You will need to do an update immediately after that.