[Fri Aug 18 12:43:08.285658 2017] [mpm_prefork:notice] [pid 1533] AH00171: Graceful restart requested, doing restart
AH00526: Syntax error on line 10 of /etc/apache2/le_tls_sni_01_cert_challenge.conf:
SSLCertificateFile: file '/var/lib/letsencrypt/PxRkAkJYw6uYIkVihzZikdXZHAI3j4mqBFgLBioaAlo.crt' does not exist or is empty
[Fri Aug 18 16:16:14.570685 2017] [wsgi:warn] [pid 18497] mod_wsgi: Compiled for Python/2.7.8.
[Fri Aug 18 16:16:14.570713 2017] [wsgi:warn] [pid 18497] mod_wsgi: Runtime using Python/2.7.9.
[Fri Aug 18 16:16:14.570744 2017] [core:warn] [pid 18497] AH00098: pid file /var/run/apache2/apache2.pid overwritten -- Unclean shutdown of previous Apache run?
[Fri Aug 18 16:16:14.575593 2017] [mpm_prefork:notice] [pid 18497] AH00163: Apache/2.4.10 (Debian) OpenSSL/1.0.1t mod_wsgi/4.3.0 Python/2.7.9 configured -- resuming normal operations
[Fri Aug 18 16:16:14.575641 2017] [core:notice] [pid 18497] AH00094: Command line: '/usr/sbin/apache2'