Openvpn error on ubuntu 16.04

hello everyone.
I encountered this error on Ubuntu 16.04 while trying to connect to openvpn server using the client file
so any suggestions or helps would be appreciated

the problem is that it worked before and on the same operating system Ubuntu 16.04
I searched the web, some people said that the file format isn’t ascii. What does that mean?

problem solved by downloading the source of openvpn and ./configure && make && make install
at least thank you for reading :smile: .

I was using openvpn 2.3 which doesn’t support a client file from OpenVPN server version 2.4

here is a link. Hiding in plain sight.

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