apache2 gives me an error code

after apache2 installation, apache doesn't work:

● apache2.service - The Apache HTTP Server
   Loaded: loaded (/lib/systemd/system/apache2.service; disabled; vendor   preset: enabled)
  Drop-In: /lib/systemd/system/apache2.service.d

       └─apache2-systemd.conf
   Active: failed (Result: exit-code) since Tue 2019-09-24 07:44:35 CEST;  30min ago

de set. 24 07:44:35 dai-Aspire-M7811 systemd[1]: Starting The Apache HTTP  Server...
de set. 24 07:44:35 dai-Aspire-M7811 apachectl[14153]: /usr/sbin /apachectl: 174: /usr/sbin/apachectl: /usr/sbin/apache2: not found
de set. 24 07:44:35 dai-Aspire-M7811 apachectl[14153]: Action 'start'  failed.
de set. 24 07:44:35 dai-Aspire-M7811 apachectl[14153]: The Apache error  log may have more information.
de set. 24 07:44:35 dai-Aspire-M7811 systemd[1]: apache2.service: Control   process exited, code=exited status=127
de set. 24 07:44:35 dai-Aspire-M7811 systemd[1]: apache2.service: Failed with result 'exit-code'.
de set. 24 07:44:35 dai-Aspire-M7811 systemd[1]: Failed to start The Apache HTTP Server.

Can you help me?
Thanks

PD: I removed apache2 and reinstalled it but it gives me an error code:

E: Sub-process /usr/bin/dpkg returned an error code (1)