If you get this error, it is often because you have configured Apache with modules that weren't actually installed. Eg. you try to load the PHPmodule but didn't actually install the apache2 php module, so the server can't start. In general, this error can often be caused by issues with problematic modules and/or Apache being configured for modules that have not actually be installed (eg. libapache2-mod-php) is missing.
The above results in this less than obv........
This is basically caused by upgrading PHPto a new version like 5.4 when you had 5.2 before and an old version of Joomla. The only solution is to upgrade Joomla or downgrade PHP, both of which can be a pain.
Strict Standards: Non-static method JLoader::import() should not be called statically in /home/userdir/public_html/libraries/joomla/import.php on line 29
Strict Standards: Non-static method JLoader::register() should not be ca........