Need help ! How can i Open a p server (runescape)

hi ! i need help pls help me

my problem is every time when i open or download a runescape private server comes a notification and there writes

1. close all open browser windows
2.try to cleaning your web browser cache
3.try to useing a other gameworld
4.try reboting your computer
5. try to selecting a different java from the play game menu


what should i do pls help me:confused::confused:

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