Hello, thanks for answer! I just erase totally my iPhone from all my information (you know, photos, setting etc) but Cydia with all tweaks was still installed. I'm sure, some main folders, or something like that was in that folder, which iPhone erased.
Yes, I tried that. I even tried installing yalufix, at the first time I thought it helped me, but it not. I really can't use cydia eraser through Cydia, I can't install tweaks, I have never been in that bad position as an IT guy, damn.
Also I tried add .lib folder into my memory (I mean specific folders of course), still nothing. I deleted something for 100%, and now, I dunno how to fix that ._.