The day before yesterday I created a new role (writers), and when, after adding quite a few modules, I wanted to add another earlier today, I discovered there was no way for me to do this anymore, nor to edit the role I already created. Now, I am a newby with Drupal, only started out about 4 days ago, so I probably (un)ticked a box somewhere I shouldn't have, so I hope someone can help me out figuring out how to change this?
I added a screenshot of the page I think the possibility to administer roles should be. :) (link)
Thanks in advance!