Lost all my weapons and levels

i was 25 level and i have 6 star rifle and 6 star rocket lucnher and so much ammo with it and now i stopped play

Hello, please give some more information about your issue so we have more to go on.

Did you make a new character and then you lost all of your stuff? If so just go into your character selection screen and click on the character that you lost all of your stuff on. Should work