Hey Joto,

have many emoticons of :csdsmile: on my account, but I would like to retrieve them and sell 'em on market. But I can't. Always getting an error.

A lot of Steam community items are retro-locked after the change by Steam that limited accounts are not allowed to trade Steam community items. Since most of the bot accounts are limited they are all affected. There is no way for us to trade your emoticons out.