@xX-ReapeR-Xx, the problem is that port 8303 is not being forwarded or it is being blocked.
If you look at your console screenshot (the black and white screenshot) there is the message:
ERROR: the master server reports that clients can not connect to this server.
This means the server tried to connect to your server and it failed! So, you are either not forwarding the port correctly? or the port is being blocked somewhere?
1. Check your machines IP address (run ipconfig from the command prompt).
2. Make sure your Router is forwarding port 8303 to your servers IP address.
3. If your server has a firewall, make sure port 8303 is open and allows incoming traffic on this port.
@Zora Drake, we can not read your mind! Which operating system do you have?