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Sometimes, due to a PHP error, scripts stop working without displaying an error, leading you to a blank page.

In that case, to find out what is the real cause, youu should do the following:

  1. Check server error logs (not access logs) if you have access to them.
  2. Go to your Joomla Administration panel, Site --> Global Configuration --> System Tab and turn on Site Debugging, then try reloading page, and check page source (HTML source). Don't forget to turn site debug off again after you have finished.
  3. if it the blank page is outside CB (no "option=com_comprofiler" in URL), e.g. in joomla during installation, add following to the index.php (or index2.php, whichever is in the URL) in frontend or backend where it gives you a blank page, just after the first "<?php" in that file:
    	ini_set( 'display_errors', true );
    	error_reporting( E_ALL );
  4. Check your web server error log for errors generated by your website. You might be able to locate the culprit by identifying the logged error.
  5. Often, it's due to lack of memory, see other relevant links below.

With the identified error message at hand, often there is a file reference that allows you to spot the problem in a component, module, CB plugin or other extension.

Search this forum with a part of error message, sometimes others had same problems, and solutions are posted.

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