Well it's strange but for now update manager is working well now but i reinstalled ubuntu and ubuntu tweak and etc so maybe that fixed it.
But the ppa is still not working well.
E: Malformed line 1 in source list /etc/apt/sources.list.d/ubuntu-tweak-stable.list (dist parse) E: can't lock the list library
Well it's strange but for now update manager is working well now but i reinstalled ubuntu and ubuntu tweak and etc so maybe that fixed it.
But the ppa is still not working well.
E: Malformed line 1 in source list /etc/apt/ sources. list.d/ ubuntu- tweak-stable. list (dist parse)
E: can't lock the list library