WSOD after chaning subtheme templates I've added the page.tpl.php and the theme.api.php file to my bootstrap subtheme's template folder, refeshed and everything was fine.

I added &lt;h1&gt;TEST&lt;/h1&gt; to the page.tpl.php to check where it would show up. Moved it a bit until I was satisfied where it was. 

However I changed my mind and deleted the files in the template folder and got the WSOD...

The two files are still in the original folder and adding them back to the templates folder does nothing.

Is there a way to fix this? Right now the whole site is blank and no errors show up.

Checking the watchdog table leads me to this function:

// Use a default value if $message is not set.
  if (empty($message)) {
    // The exception message is run through check_plain() by _drupal_decode_exception().
    $message = '%type: !message in %function (line %line of %file).';
  }
Clearing the caching tables did the trick! Thanks CodeNext!

However I could not use Drush, so I cleared them manually in PHPmyAdmin using this post