“cannot be activated when in safe_mode or an open_basedir is set in /home/wwwall/public_html/wp-content/plugins/pretty-link/classes/models/PrliUrlUtils.php on line 65.”

Yes, part of the error is as show above, and search everywhere , no solution to it, thus I am writing this to help others who are facing similar problem.

What I did was , I went to the wordpress /wp-content/plugins/pretty-links folder and made all the files and folders in it to chmod 777

The error will be gone for good.

Hope it helps