problema ao tentar executar o 'start' no apache2 [RESOLVIDO]

ubuntu 18.04 x64

quando tento executar o comando 'service apache2 start' recebo a seguinte mensagem:
● apache2.service - The Apache HTTP Server
Loaded: loaded (/lib/systemd/system/apache2.service; enabled; vendor preset: enabled)
Drop-In: /lib/systemd/system/apache2.service.d
└─apache2-systemd.conf
Active: failed (Result: exit-code) since Mon 2020-03-23 23:09:13 -03; 15s ago
Process: 17045 ExecStart=/usr/sbin/apachectl start (code=exited, status=139)

mar 23 23:09:13 gustavo-NA-1402 systemd[1]: Starting The Apache HTTP Server...
mar 23 23:09:13 gustavo-NA-1402 apachectl[17045]: Segmentation fault (core dumped)
mar 23 23:09:13 gustavo-NA-1402 apachectl[17045]: Action 'start' failed.
mar 23 23:09:13 gustavo-NA-1402 apachectl[17045]: The Apache error log may have more information.
mar 23 23:09:13 gustavo-NA-1402 systemd[1]: apache2.service: Control process exited, code=exited status=139
mar 23 23:09:13 gustavo-NA-1402 systemd[1]: apache2.service: Failed with result 'exit-code'.
mar 23 23:09:13 gustavo-NA-1402 systemd[1]: Failed to start The Apache HTTP Server.

estava com outros problemas mas consegui resolver até parar e empacar aqui, se alguém puder ajudar fico grato...

resolvido com:

sudo apt-get purge apache2 

depois:

sudo apt-get install apache2