Loging in with wrong account (kinda)

When i join my server im not on my account, im on the same name but ive lost all of my items. I can still play under the same name but i dont have any of my items that i had when i logged out. Ive had this issue before but i forgot how to fix it, can anyone help?

Quote from Roman

You probably enabled/disabled cracked mode on the options page.

Thanks, that fixed it