BB Bold 9700 :: 9700 Is Restarting And Address Book Contacts Are Gone

I noticed that my bold 9700 is restarting on its own , then the screen become white with writing JVM error 503, I search the internet to find out what happen, but few second later the phone rebooted own its own.
so i cross my finger while it was doing it. to my relieve it starts ok. But after few hours when i want to call somebody on my phone book, to my horror, the whole contacts on the address book are gone, not even 1 left, it’s totally empty. bbm, notepad, email, bookmarks, sms are fine , nothing is missing only the contacts are gone, and I’m now overseas for company meeting, and i didn’t bring any backup file with me, I’ve been a maniac for smart phones, i used Symbian, IPhone, android, winMo, etc and NONE of them ever give me such a problem out of no where, my 2000+ contacts are gone. And no I didn’t install or do anything to my phone since few weeks, cause I’m on my business trip.

is there any solution to my problem? I’ve tried sending service book bust doesn’t seem to help. Seriously, if Any of RIM employee or designer happens to see this post, i got question for you. This supposed to be a business phone, and now all my business contacts are gone.