Hello guys once again,
thank you so much for all the response!
the problem is, I don't know why, but, I used to be able to sleep in MP server europe 2. And it worked fine, the list always reappeared. Now I am simply unable to (says I am not in need of rest), and since I am new to the game, I don't know if this is servers doing, to have this feature removed. (and I don't play SP)
I tried some alternative methods though. I used the ets2sync website to sync jobs, and, acording to what I noticed, as far as I don't load any quick save state, the job list won't vanish.
I also realized that if I set the economy to 1 in the config notepad, the issue goes away. But the moment I load a quick save state, it vanishes again.
And if I drive directly to a pick up location, it won't appear either.
Furthermore, since I don't have a second garage, I couldn't check for this solution ATM.
So, making it short, I am going with the ets2sync method and avoiding quick save states load.
cheers you all!