[Plugin suggestion]

Hello I have a suggestion: to put Geysermc plugin. It makes that bedrock edition players can go into java edition servers. -> Link for the wesite

[Script for scoreboard]

How can I add script for my server? I want to do a scoreboard but I can't find a way it works . I searched on internet a lot. 

[Plotsquared]

My server needs plotsquared and I can't put it. In my server when I do /plugins it just says playerserver

I use the last version of minecraft.

Could you help me?