- White screen of death ( Completely blank page)
Occasionally a site user or developer will navigate to a page and suddenly the page content disappears, and is completely blank. No content. No errors. Nothing. This often, but not always, happens after updating a module, theme, or Drupal core. This is what is referred to by most members of the Drupal community as the White Screen of Death or WSOD. There are several reasons why this might occur, and therefore several possible solutions to the issue. Check this page for more infohttp://drupal.org/node/158043
- Not sure what to do use “Flush Cache Function”
Drupal has a caches for all your content so whenever a page is requested, it doesn’t have to generate it dynamically all of the time (quering the database), it can pull it up from cache. This speeds up the website as it reduces the amount of PHP processes and SQL queries being made.
Whenever you see that your site acts strangely or your changes to themes are not reflecting, you must Flush Cache. Flushing your cache clears out your Drupal cache and allows the site to rebuild itself with up-to-date information. Click on the left most icon on your Administration menu to invoke Flush Cache related functions.
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