»Hacker destroying chests in prison shop while not added!

this what happened 10 mins ago there were 2 people i have their names they destroyed my shop stole all my stuff idk which one did it but these two were at my place destroying chests idk how but i lost all my stuff my Prot IV armour(some parts of it i had more of that stuff) i lost swords and idk what else things I have evidence here i was selling gold block emerald block diamond blocks and iron blocks he just came here and started destroying stuff i didnt do anything I just put back the gold blocks item sell chest pls help i lost my stuff and i got robbed! P.S. this is the best server i have ever played!