I've lost access to my dashboard UI and WD2GO but can still access my folders and shares

Dear All,

I need any help, suddenly I’ve lost my access to the UI dashboard and WD2GO and got HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

I already enabled the SSH, and by checking the var/log/apache2/error.log I found the below error repeated a lot

[Thu Jan 31 08:07:13 2013] [error] [client 127.0.0.1] File does not exist: /var/www/api
[Thu Jan 31 08:07:13 2013] [error] [client 127.0.0.1] File does not exist: /var/www/Admin/webapp/errordocs

I tried also to reset the NAS using the reset button, but nothing happened, is there anyway to recover these two files to restore access my dashboard and WD2GO or to reset mybooklive without using physical button 

Anyway, I’m not Linux expert and need someone to till me what I can do 

Regards,

John Hakim

Something else is going on, because none of those files are supposed to exist.

There is no /var/www/api folder/file on my boxes, nor /var/www/Admin/webapp/errordocs, and my dashboard is working normally.