How does anyone get this working? about wok HOT 4 OPEN

Setting up nginx-core (1.16.1-0ubuntu2.1) ...
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 Tue 2020-08-25 05:06:49 UTC; 9ms ago
     Docs: man:nginx(8)
  Process: 3733 ExecStartPre=/usr/sbin/nginx -t -q -g daemon on; master_process on; (code=exited, status=1/FAILURE)

Aug 25 05:06:49 rayserver systemd[1]: Starting A high performance web server and a reverse proxy server...
Aug 25 05:06:49 rayserver nginx[3733]: nginx: [emerg] cannot load certificate "/etc/wok/wok-cert.pem": BIO_new_file() failed 
(SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/wok/wok-cert.pem','r') error:2006D080:BIO rou
tines:BIO_new_file:no such file)
Aug 25 05:06:49 rayserver nginx[3733]: nginx: configuration file /etc/nginx/nginx.conf test failed
Aug 25 05:06:49 rayserver systemd[1]: nginx.service: Control process exited, code=exited, status=1/FAILURE
Aug 25 05:06:49 rayserver systemd[1]: nginx.service: Failed with result 'exit-code'.
Aug 25 05:06:49 rayserver systemd[1]: Failed to start A high performance web server and a reverse proxy server.
dpkg: error processing package nginx-core (--configure):
 installed nginx-core package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of nginx:
 nginx depends on nginx-core (<< 1.16.1-0ubuntu2.1.1~) | nginx-full (<< 1.16.1-0ubuntu2.1.1~) | nginx-light (<< 1.16.1-0ubunt
u2.1.1~) | nginx-extras (<< 1.16.1-0ubuntu2.1.1~); however:
  Package nginx-core is not configured yet.
  Package nginx-full is not installed.
  Package nginx-light is not installed.
  Package nginx-extras is not installed.