 Assalamualaikum, nk tnye sikit, knp ye bila run `sudo apt-get update` jd mcm ni?
 Ada entry yg redundant kat sources.list. bleh edit n remove yg redundant maybe
 fix the problem
 Ok thanks
 The following security upgrades are available:  Package                        Version              USN  —---------------------------------------------------------------—  curl                           7.47.0-1ubuntu2.6    USN-3554-1  firefox                        58.0.1+build1-0ubunt USN-3552-1  libcurl3                       7.47.0-1ubuntu2.6    USN-3554-1  libcurl3-gnutls                7.47.0-1ubuntu2.6    USN-3554-1 
[07:35] <UbuntuMY> libjavascriptcoregtk-4.0-18    2.18.6-0ubuntu0.16.0 USN-3551-1  libtasn1-6                     4.7-3ubuntu0.16.04.3 USN-3547-1  libwebkit2gtk-4.0-37           2.18.6-0ubuntu0.16.0 USN-3551-1  thunderbird                    1:52.6.0+build1-0ubu USN-3529-1