If your Kafka Magic app doesn’t start correctly, most likely reason is that the port number is already in use by some other app. Just change CONFIG_PORT configuration parameter to a different number and try again.
If this doesn’t help look at the log files and send us a message.
On Windows Kafka Magic app writes log files to the KafkaMagicLogs subfolder of the current location of the Kafka Magic executable file.
On macOS Kafka Magic app writes log files to the ~/Library/Logs/KafkaMagicLogs folder.
On Linux and Docker Container Kafka Magic app writes logs to standard output.