Hi,
I configurred mikrotik for OpenVPN and at client can connect to router through openvpn and seems LAN.
But I want to connect server and from server can`t access to machine client openvpn folders shared.
e.g. OpenVPN Client 192.168.89.50, Server 192.168.1.100. From client can access to \\192.168.1.100 but from server cannot access to client \\192.168.89.50.

Most likely a firewall problem on the client. Windows firewall will not allow this by default.