Why I cant connect to My VPN from SOCKS5??

[alexey14]

Hello everyone
I created my own Personal vpn on my VPS, I can connect to it without problem, I also created my own Socks5 proxy and it work 100% fine and I tested it, pinged it, made a tunnle with my socks5 and even connected to a nordvpn on opnvpn server using my socks5 proxy, So both of my Personal openVpn and socks 5 work 100% fine, There is only 1 problem, I cant connect to my own openvpn using my socks5 proxy? ( I can connect to nordvpn using my socks5, there is no problem with my socks5 )
my socks 5 proxy is on different server.
I got this error when Im tring to connect to my vpn using my socks5 proxy:

Connection reset, restarting [-1]
Closing DCO interface
[soft,connection-reset] received, process restarting

Once again my vpn work fine without socks5, my socks5 also work fine on other openvpn server, So where is the problem come from? .

[alexey14]

I even disabled the firewall on my openvpn server but problem not solved, any Idea?