The VIKTOR-cli was no longer able to clear entities and returned the following error message:
Could not clear entities and entity types: status code 504.
Rebooting my laptop solved the issue
Expected Behavior
The cli should be able to clear entities and if not, return a more explicit explanation of the failure
I doubt that this had to do with your laptop. Exit code 504 is a standardized HTTP exit code that signals a gateway timeout (504 Gateway Timeout - HTTP | MDN).
Last Thursday the platform experienced some issues which I think might have caused your error.