Ok, sorry. I get now ...
In ROOT_PATH, you see error_log file (in FTP) ?
I don't have a error log in the root.
But on a other place on the server (i don't know the link (can't find him))
I have a: error_log, access_log and xferlog_regular (i cab open this in my plesk administration)
There is no error in your website.
The links work properly.
The website is working fine.
No error messages.