BASH: alias ls problem

Hello, I'm new to this slack group and I have a question about the mac terminal, in particular how to remove access control list 'trailing'

so to elaborate, whenever I type ls, then i see this kind of text Untitled drwxr-xr-x+ firstly, is this the right channel to ask about this problem ? secondly, if so - does anyone know how to fix it ? I allowed someone to use my computer and he took the liberty to re-configure the terminal settings...and I haven't been able to get rid of it since