Lost character from account

Hello, i dont know English wery good but this is what happend. I was playing wow for the past five days and i noticed that my account has three character instead of forth and the some of the item is missing. My hunterr race: NightElf, gender: female, name: Naturaltits. Is missing from my account and i dont know what happend and in the same time from my paladin race: human, gender: female, name: Maaraatonka some of the item missing. Last time when i was log in was 2/3 years ago is there something you can do to bring back thing that missing?

I hope for your quick response, best regards.

Stevan.