Example
/lp group superadmin meta addprefix 100 "&4[&5Super&4 Admin&5]"
Gives no space between my name and prefix

Add a space at the end of your prefix, but before the last quotation mark.

That's because you don't have set a space after the ]
If you set the prefix "&4[&5Super&4 Admin&5]" then obviously does it not have any space because as you see, between the ] and " is no space.

That's so crappy lmao
But thanks for the help guys

That's so crappy lmao

Seems pretty logical though, right?!