Guild Wars 2

Hello everyone,
for the past two days i’ve been having a problem selling into the Trading Post.
Anytime i try to sell stuff like crafting materials (ore, wood,) or stuff like bags stuffed with goodies, and most of t he weapons (not soulbound), everytime i right click them i dont see the option “sell at trading post”
Any way to fix that?
I can find same items but i cant sell mines.

The default thing to verify first is that the items you were trying to sell aren’t in invisible bags/safe boxes/etc.