NamelessMC

When I try to add/edit permissions on a group, it says this (when I click submit): https://media.discordapp.net/attachments/415565904366272523/578285296446210049/unknown.png?width=1286&height=683

I've tried everything I can and nothing is working, I'd appreciate some advice.

- thanks

Hmm this is a really strange one, I haven't seen this before.

What is the URL when you are editing the permissions, before you click submit? It should be the same as the URL in your error screenshot.

Well, I've just figured out that it's only some permissions that don't work. Some do let me edit them, some don't. 

Unfortunately I don't know what the problem is, would it be possible if I could take a look at the files using FTP?