To make it easier to word, wen i do the command to make a group have the same permissions as another group the group that I want to have the same permission keeps the parents prefix.

I don't understand what you are trying to say at all.

Okay. I have a rank called ice and a rank called default. I make the ice inheriance from default. Once I do that, ice has the same permissions as default but ice has the same prefix as default

Show me your full permissions.yml file. (Copy it to Pastebin and leave the link here.)

Prefixes are not inheritable— only permissions are —so there must be something else going on in your files and configs.

No response in 7 days. Issue must be resolved.

I resolved that error but now I have another error. My players have access to /plugins. They dont have the permission node. http://pastebin.com/WE0xZQPx

OK. Responded to #2722. Post over there for that issue. This thread is done.