folder disappear from samba share

i have created samba share with 3 private share and one general backup with guest allow condition.
i have added recycle feature also and that is working find with “cut”, “move” and “delete” from windows location. after using cut, delete, and move option at windows end
all items are moving in my recycle bin folder in samba.
but my one of very imp folder is disappear and it is not in my trash also. please guide me how it is possible.