issue killing process

hi am having this issue when killing process
ps aux | grep -i dpkg
devops   12626  0.0  0.0  21532  1044 pts/0    S+   06:31   0:00 grep --color=auto -i dpkg
devops@devops-VirtualBox:~$ sudo kill -9 12626
kill: (12626): No such process
devops@devops-VirtualBox:~$ sudo kill 12626
kill: (12626): No such process
devops@devops-VirtualBox:~$ ps aux | grep -i dpkg
devops   13970  0.0  0.0  21532  1048 pts/0    S+   06:32   0:00 grep --color=auto -i dpkg
devops@devops-VirtualBox:~$ sudo kill - 13970
kill: failed to parse argument: '-'
devops@devops-VirtualBox:~$ sudo kill -9 13970
kill: (13970): No such process
devops@devops-VirtualBox:~$

sudo apt-get install \
> apt-transport-https \
> ca-certificates \
> curl \
> software-properties-common
E: Could not get lock /var/lib/dpkg/lock-frontend - open (11: Resource temporarily unavailable)
E: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), is another process using it?