stop.
http://www.strengthandknowledge.com/
The error you see there is caused by you editing the index.php that is sitting in the same directory as your wp-config.php
That File does not get edited.
You need to stop trying to do things when you dont know what you are doing, and do some reading -- thats what the link at the top of the page that says Docs is for.
Thats called Documentation.
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To fix the immediate error you see you need there, to delete the index.php that you have edited, and upload a fresh copy of the one out of the wordpress zip.
There will be atleast 3 of them inside the zip -- you want the one that is inside the same folder as the wp-config.php-sample.
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And please, if you are unwilling to familiarize yourself with the basic workings of WP -- hire someone that is, its much simpler in the long run.