Here is a log loop:
2019-11-20 10:32:30: Viscosity Mac 1.8.2 (1516)
2019-11-20 10:32:30: Viscosity OpenVPN Engine Started
2019-11-20 10:32:30: Running on macOS 10.14.6
2019-11-20 10:32:30: ---------
2019-11-20 10:32:30: State changed to Connecting
2019-11-20 10:32:30: Checking reachability status of connection...
2019-11-20 10:32:30: Connection is reachable. Starting connection attempt.
2019-11-20 10:32:30: OpenVPN 2.4.8 x86_64-apple-darwin [SSL (OpenSSL)] [LZO] [LZ4] [PKCS11] [MH/RECVDA] [AEAD] built on Nov 11 2019
2019-11-20 10:32:30: library versions: OpenSSL 1.1.1d 10 Sep 2019, LZO 2.10
2019-11-20 10:32:30: Resolving address: fr1-ovpn-udp.pointtoserver.com
2019-11-20 10:32:30: Valid endpoint found: 172.111.219.2:53:udp
2019-11-20 10:32:30: WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.
2019-11-20 10:32:30: TCP/UDP: Preserving recently used remote address: [AF_INET]172.111.219.2:53
2019-11-20 10:32:30: UDP link local: (not bound)
2019-11-20 10:32:30: UDP link remote: [AF_INET]172.111.219.2:53
2019-11-20 10:32:30: State changed to Authenticating
2019-11-20 10:32:30: WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
2019-11-20 10:32:30: VERIFY ERROR: depth=0, error=CA signature digest algorithm too weak: C=HK, ST=HK, L=HongKong, O=PureVPN, OU=IT, CN=PureVPN, name=PureVPN,
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2019-11-20 10:32:30: OpenSSL: error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed
2019-11-20 10:32:30: TLS_ERROR: BIO read tls_read_plaintext error
2019-11-20 10:32:30: TLS Error: TLS object -> incoming plaintext read error
2019-11-20 10:32:30: TLS Error: TLS handshake failed
2019-11-20 10:32:30: SIGTERM received, sending exit notification to peer
2019-11-20 10:32:30: SIGTERM[soft,tls-error] received, process exiting
2019-11-20 10:32:31: State changed to Disconnected
Thanks.