This is a complete recode of the original NightVision+, there was an issue with the old code, having still been new to development I had used a method which was, #cancelAllTasks, which cancelled every task on the server instead of just NightVisionPlus's tasks, so I have completely recoded the plugin in order to fix these problems. I apologize for the inconvenience.

[+] Re-coded the entire plugin
[+] Optimizations allowing night vision to be kept when the server closes
[+] New configuration file with new options
[+] Data file for storing whether a player had their Night Vision enabled when the server closed
[+] Choose between a ActionBar or a message in chat (or both, whatever you want)