jslozier wroteThu May 25 19:06:39 2017 OpenSSL: error:140AB18E:SSL
routines:SSL_CTX_use_certificate:ca md too weak
Thu May 25 19:06:39 2017 *Cannot load certificate file
/home/petros/Documents/******/cert-vpn/jlozier-cert.pem*
I expect your PKI is using 1024 bit (or less) and so now openssl will refuse to use it ..
Upgrade your PKI to 2048 bit or more ..