Admin Commands: You Don't Have Permission to do That!

Hello!

I recently made a server and my friends and I have been working on it for a couple of days now. I have installed EssentialsX, the 2.17.2.0 version. I am on 1.15.2. All was working well, however, one thing did not go accordingly.

So, I have complete permission to change the gamemodes of my friends when I OP them. However, when I make them non-OPs, and I try to change their gamemode I recieve a message saying

"[Admin Commands] You do not have permission to do that!"

This doesn't make any sense...

Please help!!!

Thank you.

Hi, thanks for the response!

Just one question, how do I make use of a permission system through aternos? I am really new to this kind of thing...

Thanks!