Unable to lock the vault because its being used by kded6, xsettingsd

Why is this happening.
this happened after I tried the vaults widget by trying to lock an ssd that I mounted on /file

which I am positive worked at first but after I tried removing the vault it didn’t do anything and I couldn’t lock the vault after that which gave me this error " Unable to lock the vault because its being used by kded6, xsettingsd "

does anyone know why or should I report it as a bug?