Server not work

Hello, About 10 hours ago I uploaded my Java Discord bot JAR file. Shortly afterwards, the server became inaccessible from the control panel. The current symptoms are: The server page remains stuck on loading. The File Manager shows: "Failed to load files. Please refresh the page." Restarting the server returns "Internal Server Error". Trying to delete the server also returns "Internal Server Error". I cannot access the server console or properly manage the server. The problem has persisted for approximately 10 hours. Could you please check whether there is a problem with the node/server instance and whether the server can be restored? Thank you.