Hello everyone. For some odd reasons, I can't sell my enchant daggers to anyone. The daggers are not stolen they are smithed and enchanted by me. Please help me. Ty.

One time i accidently put mine in a chest that didnt belong to me, then when i took them back they all got flagged as stolen.

I stored it a barrel, then i asked lydia to take all the items from the barrel. Then this happened

are you sure they aren't flaged as stolen? it should say. This happens sometimes regardless if you order your follower to take them.

As noted in the bugs section http://elderscrolls.wikia.com/wiki/Follower_%28Skyrim%29 :

Followers can be commanded to pick up items off the ground or from unlocked container that would otherwise exceed their carry capacity and continue to move normally. In this way, followers can carry an "infinite" amount of loot. All items picked up this way will be marked as stolen item, however.

It's not flagged as stolen. I smithed some new daggers. Those new daggers (unchanted) i could sell. But, the old daggers (unchanted) that I made Lydia take from a barrell still will not sell.

You've tried selling them to a fence?