Can't start Forge server 1.16.4

Hi,
i installed a forge server 1.16.4. There for i choosed “1.16.4-recommended” as profil and “forge-1.16.4-35.1.4-installer.jar” as runnable jar in a first step. Then i changed the runable jar to “forge-1.16.4-35.1.4.jar” but the server won’t start when i klick on start.
The mineos.log says:

{“command”:“start”,“uuid”:“d9573540-2b72-11ec-84ef-fbb56a65233b”,“time_initiated”:1634053281428,“success”:false,“err”:"!up",“time_resolved”:1634053281533,“level”:“error”,“message”:"[kagge] command “start” errored out:",“timestamp”:“2021-10-12T15:41:21.534Z”}
{“level”:“info”,“message”:"[kagge] 192.168.178.25 issued command : “start”",“timestamp”:“2021-10-12T15:41:23.359Z”}
{“level”:“info”,“message”:"[kagge] received request “start”",“timestamp”:“2021-10-12T15:41:23.359Z”}

I’m thankful for any advice.