zyphs@ap:~/Downloads$ sudo apt-get install nginx
Reading package lists... Done
Building dependency tree
Reading state information... Done
nginx is already the newest version (1.14.0-0ubuntu1.6).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
3 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up nginx-extras (1.14.0-0ubuntu1.6) ...
Job for nginx.service failed because the control process exited with error code.
See "systemctl status nginx.service" and "journalctl -xe" for details.
invoke-rc.d: initscript nginx, action "start" failed.
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Sat 2019-09-21 18:42:30 UTC; 4ms ago
     Docs: man:nginx(8)
  Process: 2034 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=1/FAILURE)

Sep 21 18:42:30 ap systemd[1]: Starting A high performance web server and a reverse proxy server...
Sep 21 18:42:30 ap nginx[2034]: nginx: [emerg] BIO_new_file("/etc/wok/wok-cert.pem") failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/wok/wok-cert.pem','r') error:2006D080:BIO routines:BIO_new_file:no such file)
Sep 21 18:42:30 ap nginx[2034]: nginx: configuration file /etc/nginx/nginx.conf test failed
Sep 21 18:42:30 ap systemd[1]: nginx.service: Control process exited, code=exited status=1
Sep 21 18:42:30 ap systemd[1]: nginx.service: Failed with result 'exit-code'.
Sep 21 18:42:30 ap systemd[1]: Failed to start A high performance web server and a reverse proxy server.
dpkg: error processing package nginx-extras (--configure):
 installed nginx-extras package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of nginx:
 nginx depends on nginx-core (<< 1.14.0-0ubuntu1.6.1~) | nginx-full (<< 1.14.0-0ubuntu1.6.1~) | nginx-light (<< 1.14.0-0ubuntu1.6.1~) | nginx-extras (<< 1.14.0-0ubuntu1.6.1~); however:
  Package nginx-core is not installed.
  Package nginx-full is not installed.
  Package nginx-light is not installed.
  Package nginx-extras is not configured yet.
 nginx depends on nginx-core (>= 1.14.0-0ubuntu1.6) | nginx-full (>= 1.14.0-0ubuntu1.6) | nginx-light (>= 1.14.0-0ubuntu1.6) | nginx-extras (>= 1.14.0-0ubuntu1.6); however:
  Package nginx-core is not installed.
  Package nginx-full is not installed.
  Package nginx-light is not installed.
  Package nginx-extras is not configured yet.

dpkg: error processing package nginx (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of wok:
 wok depends on nginx; however:
  Package nginx is not configured yet.
  Package nginx-extras which provides nNo apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                                                                 No apport report written because the error message indicates its a followup error from a previous failure.
                                                            ginx is not configured yet.

dpkg: error processing package wok (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 nginx-extras
 nginx
 wok
E: Sub-process /usr/bin/dpkg returned an error code (1)