This is a Bedrock Dedicated Server log
What it looks like in your log
NO LOG FILE! - setting up server logging...
What causes it
Roastd's signatures cover Minecraft Java edition servers and clients, so it read this Bedrock log but recognised nothing in it.
How to fix it
For Bedrock the usual suspects are the port already in use (change server-port in server.properties), a world folder from a newer version, and a permissions.json or allowlist.json with a syntax error. Bring the share link to our Discord and someone will read it by hand.
Not sure this is your problem? Paste your log and Roastd will tell you which of these it actually matched, and what else it found.
Check your own log