You really should contact
Customer Support and give the an approximate date for the last time you accessed your account when everything was there.
Note that if you haven't played in a while, you're probably going to need a CS account - you must register with your game account email address so they know you are the same person.
Until such time as Support can investigate the missing equipment and return whatever they can, there is a level 50 armor package freely available from Biang Fenren in Weeping Coast that can get you sorted out for now, and a further armor set freely available every 5 levels.
