Hey, firstly, your issue with EssentialsX Chat, do you have the main EssentialsX plugin installed? I know this must sound kinda basic, but it is a mistake we all make, as we are all humans. If this is not the case while running your server, are there any errors in the console related to EssentialsX and EssentialsX Chat? Also, make sure you are using up-to-date versions of both plugins.
Secondly, for Skript, which permissions plugin did you add, and which skript add on plugins do you have, if any? Also, when you start the server or try to run a skript command, are there any errors related to skript or any skript addons?
Thirdly, I try to talk and act how I would in real life, which I believe is the best way to communicate on the internet.