Server not starting ? server_log.txt contains this error?
Error: Your password must be changed from the default password, please change it.
That means file /server.cfg contains line
rcon_password changeme
1. Stop server
2. Edit /server.cfg file
changeme must be changed with your secure password(it can't be empty). For example:
rcon_password 9d445ce6e692006fbb068f3e378ce6f9
3. Start server
the solution its in gamemode archive, .pwn, change this line SendRconCommand("rcon thepassword");