Openvpn error ciphers

Hi bros could you help me out with this error please? I am trying to connect to a challenge in my old Ubuntu and i got this when i use openvpn:

i just use the same sudo openvpn htb.ovpn

Options error: Unrecognized option or missing or extra parameter(s) in htblab.ovpn:12: data-ciphers-fallback (2.4.7

My version of openvpn is:

OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Mar 22 2022
library versions: OpenSSL 1.1.1f  31 Mar 2020, LZO 2.10

Thanks in advance.