Yes, the file exist, here is the result of "ls -l HookRegistry.inc.php":
-rw-rw---- 1 phot2006 phot2006 5085 Aug 18 05:22 HookRegistry.inc.php
I did some modifications writings about conferences, conference managers, etc, the changes were using the web interfaces.
The trouble apperar in the access to the system, I can't see the first page (index), so I can't use ocs.
Well, I had installed ocs to test it, in the next days I will renew the installation again because we need it in a production stage. But I want know about this problem, and the possible cause.
Thank you very much.