AOL version 6.0 all my mails disappeared

Hi All,
All of my emails suddenly disappeared. I am using AOL version 6.0 and XP Operating System for my machine. It is really weird, I know I’ve got thousands of emails, archive emails are not included yet in the count. But all of them are gone. I did not do any upgrades of AOL even switching of emails. I have restarted my computer and tried to access it again for the sake of refreshing my PC.
Unfortunately, once the AOL is up, I really can’t find anything there. I want to know what else I can do to fix this. Those emails are precious to me.
Thanks.
