Hmm, I thought I had a solution to your problem, but now I'm not so sure....
Based on your "directory structure screenshot" the relevant line in the config_local.php should be:
Code:
$config['calibre_directory'] = './ebooks/'
However that possibly leads to a grey screen on
http://library.momraths.com and a strange error on
http://library.momraths.com/checkconfig.php.
Or not, can you test?
For testing purposes the access rights on directories
/library.momraths.com and
/library.momraths.com/ebooks should be (at least) 755. But I suspect they already are.
Just to be sure, can you verify your Calibre Library in Calibre?
Did you use the latest cops version from github?
[I'm not the developer, just an enthusiastic user with some knowledge]