Nginx won't start with error - cannot load certificate "/var/cpanel/ssl/cpanel/mycpanel.pem"

Symptoms

NGINX fails to start, and the log shows an error similar to the following.

CONFIG_TEXT: Jun 15 18:47:54 host.domain.tld nginx[9957]: nginx: [emerg] cannot load certificate "/var/cpanel/ssl/cpanel/mycpanel.pem": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/var/cpanel/ssl/cpanel/mycpanel.pem','r') error:2>

Cause

The error occurs due to a configuration conflict in NGINX. Rebuilding the configuration will normally resolve the cause.

Resolution

1. Access the server's command line as the root user via SSH or the WHM Terminal.

2. Rebuild the configuration for ea-nginx.

   # /usr/local/cpanel/scripts/ea-nginx config --all

Additional Resources

The ea-nginx Script