$CFG->dataroot = 'ceer.info/learn/ftp';
I think you want:
$CFG->dataroot = '/home/ceer9aa/public_html/learn/ftp';
Actually this is a security risk. It's better to create a folder 'moodledata' in your top level folder. Then your dataroot line would be:
$CFG->dataroot = '/home/ceer9aa/moodledata';