PHP error - very simple but I don't know anything about PHP

I'm getting this error:

Warning: require_once(./Unified/DeltaDatabase.php) [function.require-once]: failed to open stream: No such file or directory in /home/mybaby5/public_html/www.glasssteelandstone.com/GSS_Contribute.php on line 4

Fatal error: require_once() [function.require]: Failed opening required './Unified/DeltaDatabase.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/mybaby5/public_html/www.glasssteelandstone.com/GSS_Contribute.php on line 4

It is probably really easy to fix but since I know nothing about PHP I don't really know what it is trying to tell me. Line 4 of the file in question is: require_once('./Unified/DeltaDatabase.php');

This is a site I purchased and I really don't know how it was setup. Any help would be appreciated

 

Sounds like the script can't find the ./Unified/DeltaDatabase.php file. Does that file exist in that location?

 

does the "." refer to http://www.mydomain.com? If so then no, it is not in that location. I'm assuming I must find that file, put it in that location, and that should solve the problem correct?

 

The single dot refers to the current directory the script is being run from. From the error message you posted I think so.

 

Thanks for the help. I'll look for that DeltaDatabase.php file and move it.