huge glitch(es)!!!!

this is weird i made a new account and i didnt get the hat or backround! and when i left i didnt have anything in my inventory! (even my starting color!!!) then i went to the cove to get the hat and then it said "you have found a music jam hat! would you like to pick it up?" i said yes then it said "undenfined has been added to ur inventory i opened my inventory and it wasnt there i tried it again and it said the same thing i pressed yes again and it just said "you already have this item" then it was just a blue loading screen!!!!! THIS IS WEIRD!!!!!