License required? v20.10.93

I installed manager using this command

#!/bin/bash
docker pull cronet/manager.io:latest
docker run -d \
 --restart=always \
 --name manager \
 -h manager \
 -e PUID=1001 \
 -e PGID=1001 \
 -e TZ=Europe/Nicosia \
 --net=network \
 -p 8082:8080 \
 -v manager:/data \
 cronet/manager.io:latest

and I get a prompt to install a license. Is this normal? I may be wrong, but I was under the impression that manager was free.

The Desktop Edition is Free but the Server and Cloud Editions are not Free.

All features in the Server and Cloud Editions except for Multi-User Access can be accessed in the Desktop Edition.