Yet another parser error

I just installed Modx and have been attempting to get the MaxiGallery snippet to work without much success. I get this error whenever I insert the snippet call into the documents.

PHP error debug
Error: Unknown(/home/american/public_html/main/assets/snippets/maxigallery/functions.php): failed to open stream: Permission denied
Error type/ Nr.: Warning - 2
File: /home/american/public_html/main/manager/includes/document.parser.class.inc.php(705) : eval()’d code
Line: 271

Your help would be much appreciated.

Check that the file is readable by PHP. Try giving it 644, 755, or 777 permissions.

I checked the permissions of both of the files listed and they are both 755. Any other ideas?

And the permissions on the maxigallery folder?

Do you have any other snippets or modules, like the WebLogin snippet, working that use external files?

Have you copied the files to right folders and have you checked character cases, eg. you have created a folder "maxigallery" under assets/snippets not "MaxiGallery" or something..?

Thanks everyone, apparently the permissions were messed up.

Great that you got it working eventually! Could you tell what made it to work so others encountering the same can get help here..