Zombies are indicative of more serious issues.
Argent can delete Zombies for you but you need to get to the root cause.
First some background.
Captivating as its name is, a Zombie process is one that has terminated, but its entry is still in the process table, taking up a process ID number.
More Zombies = More Wasted Process IDs
Under a heavily loaded Linux server, a system can eventually run out of unallocated process ID numbers.
Use the Argent Rule SCP_ LINUX_MAX_ZOMBIE_PROCS to test for Zombies.