Unfortunately there's not really a way to see what specific folders within your server are taking up the most disk space.

It's most likely a plugin or a world taking up that much space. (more often than not, a world) You'd need to narrow it down though. You could download ones you're suspicious of and see how much content they have in them.

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Welcome to the Minehut forums! Though uh, this is not the correct place to be suggesting why you should become a Volunteer Moderator. Introduce Yourself is meant to be a place that you say what you want others to know about yourself. 

If you wish to apply for the Volunteer Moderator position, you can always apply here --> https://forums.minehut.com/forum/1260-volunteer-application-info/ - (By clicking on the Subform of "Volunteer Applications" after you read Application information and Application FAQ & requirements first, as i recommend.

Also i do wanna let you know, that a moderator's job is not to update the server, Nor do they have those types of perms normally, but it is to simply keep the peace on the server by enforcing the rules that were set in place, and by taking appropriate action if deemed necessary.  

I wish you Good luck on your application if you do decide to make one and meet the requirements, and have a great day and night! 

lol this is not where you make an application

my server disk space for my sever keeps going up and i cant stop it and i cant figure out how its at 97percent full and i been deleting plugins and stuff and nothing is working please tell me how to fix