Plesk is not accessible: Starting sw-cp-serverd: nginx: [emerg] BIO_new_file(“/usr/local/psa/admin/conf/httpsd.pem”) failed

• Plesk is not accessible with the following error:

  502 Bad Gateway nginx

• The sw-cp-server service is down with the following error:

  # service sw-cp-server status
  Starting sw-cp-serverd: nginx: [emerg] BIO_new_file(“/usr/local/psa/admin/conf/httpsd.pem”) failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen(‘/usr/local/psa/admin/conf/httpsd.pem’,’r’) error:2006D080:BIO routines:BIO_new_file:no such file)

Cause

/usr/local/psa/admin/conf/httpsd.pemcertificate file is missing.