After Yesterday the website just stopped and started throwing up an internal server error, this is in the error log
I am running 4.0.3
[15-Dec-2013 02:57:23 Antarctica/Macquarie] PHP Fatal error: Namespace declaration statement has to be the very first statement in the script in /home/polefit1/public_html/app/Tygh/Bootstrap.php on line 14
[15-Dec-2013 02:57:23 Antarctica/Macquarie] PHP Stack trace:
[15-Dec-2013 02:57:23 Antarctica/Macquarie] PHP 1. {main}() /home/polefit1/public_html/index.php:0
[15-Dec-2013 02:57:23 Antarctica/Macquarie] PHP 2. require() /home/polefit1/public_html/index.php:21
[15-Dec-2013 02:57:23 Antarctica/Macquarie] PHP 3. Composer\Autoload\ClassLoader->loadClass() /home/polefit1/public_html/index.php:0
I am desperate to get the site up and running again
You likely have whitespace in your index.php file (public_html/index.php) before the opening php tag. If you cannot see the whitespace in your usual text editor, try another text-based editor to remove the whitespace.