Name change

I tried changing my name to my spotify name which is “Browndie Bit*h” and it keeps saying “Error Null: Null” but it was “Blondie Bit*h” before it was changed. I thought it might just be a actual error so i changed it “Browndie” just to see if it would stay and it did. But now i cant change it back to Blondie B or change it to Browndie B. Can i have my old name back or so?