MineOS Logs say server is not available on port but can still connect

I set up a minecraft server (forge) some time ago and played on it and now im trying to set up a new one (also forge), which crashes instantly and doesnt generate the minecraft server file. In the mineos.log file its prints: “MC Server not avaible on port 25565” about twice and then crashes.
When i start up the older server it says the same thing but i already have the minecraft server file so it stays up and I can connect on the server with my client. Oddly it still sends the same " MC Server not avaible on port 25565" once per second into thhe mineos.log file