there are tons to be found about my issue... Unfortunately too newbee to do it with Drush which I understood might have been the sollution. Please understand that I have to do it in another way than by using Drush.
The colorbox module is in /sites/all/libraries/colorbox-2/colorbox/(colorbox, content, example 1, ect) The module is activated in the Modules' section.
In the Configuration of the Colorbox I see in red "You need to download the Colorbox plugin and extract the entire contents of the archive into the /sites/all/libraries/colorbox folder of your server."(which is there already..)
If underneath with warning I put in the path /sites/all/modules/colorbox and save it will still come up with this same warning.. (see attachment)
The colorbox plugin is in /sites/all/modules/colorbox/(colorbox-insert-image.tpl.php ect)
If it is a folder preferences issue than is my question how do I use Sudo, which I googled up is a module/tool to set preferences in Drupal.
(I work locally with MAMP)
Thanks a lot in advance