Unable to connect to HTB VPN

I can connect to others like tryhackme… So I know how to do it (and I’ve done a few challenges on here). Now, no matter what I do, I can’t seem to connect to any VPNs. It’ll say something like this:

sudo openvpn lab_Aleph0420.ovpn
[sudo] password for derek:
2022-05-15 19:56:06 WARNING: Compression for receiving enabled. Compression has been used in the past to break encryption. Sent packets are not compressed unless “allow-compression yes” is
also set.
2022-05-15 19:56:06 DEPRECATED OPTION: --cipher set to ‘AES-128-CBC’ but missing in --data-ciphers (AES-256-GCM:AES-128-GCM). Future OpenVPN version will ignore --cipher for cipher negotiat
ions. Add ‘AES-128-CBC’ to --data-ciphers or change --cipher ‘AES-128-CBC’ to --data-ciphers-fallback ‘AES-128-CBC’ to silence this warning.
2022-05-15 19:56:06 OpenVPN 2.5.5 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Mar 22 2022
2022-05-15 19:56:06 library versions: OpenSSL 3.0.2 15 Mar 2022, LZO 2.10
2022-05-15 19:56:06 Outgoing Control Channel Authentication: Using 256 bit message hash ‘SHA256’ for HMAC authentication
2022-05-15 19:56:06 Incoming Control Channel Authentication: Using 256 bit message hash ‘SHA256’ for HMAC authentication
2022-05-15 19:56:06 TCP/UDP: Preserving recently used remote address: [AF_INET]
2022-05-15 19:56:06 Socket Buffers: R=[212992->212992] S=[212992->212992]
2022-05-15 19:56:06 UDP link local: (not bound)
2022-05-15 19:56:06 UDP link remote: [AF_INET]
2022-05-15 19:56:06 TLS: Initial packet from [AF_INET], sid=8c27c883 d8e75004
2022-05-15 19:56:06 VERIFY ERROR: depth=0, error=CA signature digest algorithm too weak: C=UK, ST=City, L=London, O=HackTheBox, CN=htb, name=htb, emailAddress=info@hackthebox.eu, serial=1
2022-05-15 19:56:06 OpenSSL: error:0A000086:SSL routines::certificate verify failed
2022-05-15 19:56:06 TLS_ERROR: BIO read tls_read_plaintext error
2022-05-15 19:56:06 TLS Error: TLS object → incoming plaintext read error
2022-05-15 19:56:06 TLS Error: TLS handshake failed
2022-05-15 19:56:06 SIGUSR1[soft,tls-error] received, process restarting
2022-05-15 19:56:06 Restart pause, 5 second(s)

Anyone experiencing similar things or am I the only one? Any help would be appreciated. Thanks.

Yes, I also see this error message with OpenVPN 2.5.5.

See the workaround (quick and dirty) in Lab Access Openvpn certificate verify failed.
Also the item Unable to connect to Machine Openvpn, but able to connect to Startingpoint Openvpn.