Missing weapons bloody scythe (The Elder Scrolls 5: Skyrim)

to pass the mission I just can't live a long time passed and brushed my saves

when I passed the mission I picked up the bloody scythe and she was in the inventory I didn't pay attention to it but recently noticed that I have lost

weapons are particularly rare I don't throw

watched my partner do it too, no her looked in the chest where I keep all the weapons there too, havent looked in the cave there is also no she tried to enter the code through ~ but I did not understand how it is necessary to write

the normal version not the special edition

steam version