networking plugin—responsible for managing online connections—cannot find the correct game engine process to attach to. Because it’s floating in your system’s memory without its "home," it triggers a fatal error to prevent further instability. How to Find Your Way Back
If you are looking for a "paper" in the sense of a technical guide or a troubleshooting document, here is a summary of the situation and common solutions: Context of the Error Opennet Plugin Loaded Into An Unknown Process
The Opennet plugin has been loaded into an unknown process, potentially indicating a malicious or unauthorized activity on the system. This event may be a sign of a larger security issue, and immediate attention is required to investigate and mitigate any potential threats. Opennet Plugin Loaded Into An Unknown Process