Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied) [FIX]

fix.sh

# E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
# E: Unable to lock directory /var/lib/apt/lists/
# E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
# E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

sudo killall apt apt-get

# If none of the above works, remove the lock files. Run in terminal:

sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock*

# then reconfigure the packages. Run in terminal:

sudo dpkg --configure -a

# and

sudo apt update