Error code preferences read only, even after 'solving' by following instructions.

Hello, ive recently tried to install Adobe Illustrator on my Macbook for work related reasons. Unfortunately everytime i attempt to start it up it hits me with a pop up error telling me i need to change the preferences 'read only' to 'read and write'. Ive done this, multiple times to the assigned folder, sometimes even attempting other folders. Even making sure to press the setting; apply to enclosed items. However every time i try to start it up again it just gives me the same errors.

In a video i watched about this it also told me to give my Adobe Illustrator full disk access in my privacy settings, that i have also done. Ive tried to open up illustrator with and without that granted access however im still met with the same error code. 

Ive tried to open up Adobe Photoshop to see if it would do the same, but with that i had no issues and it starts up fine. Is this an Illustrator only thing? Or could it be my computer? I've never really had to manually set something up for an Adobe program to work, so im a bit confused and i really do hope the problem is quick and easy to solve. I'd greatly appreciate any help to get there.