500 Server Error after Updating


I get the following error after updating from 2.6.1 to 2.7.1

PHP Fatal error:  Uncaught Error: Class 'xPDODriver_' not found in /home/portabl3/public_html/core/xpdo/xpdo.class.php:1884
Stack trace:
#0 /home/portabl3/public_html/core/xpdo/xpdo.class.php(342): xPDO->getDriver()
#1 /home/portabl3/public_html/core/model/modx/modx.class.php(450): xPDO->__construct(NULL, NULL, NULL, Array, NULL)
#2 /home/portabl3/public_html/index.php(36): modX->__construct()
#3 {main}
  thrown in /home/portabl3/public_html/core/xpdo/xpdo.class.php on line 1884

Any ideas?

1 Like

Your core/config/config.inc.php got corrupted - restore that from a pre-upgrade backup.

Thanks but now I’m getting:

PHP Fatal error:  Uncaught Error: Call to a member function getOption() on null in /home/portabl3/public_html/core/cache/includes/elements/modplugin/23.include.cache.php:20
Stack trace:
#0 /home/portabl3/public_html/core/model/modx/modscript.class.php(76): include()
#1 /home/portabl3/public_html/core/model/modx/modx.class.php(1668): modScript->process(NULL)
#2 /home/portabl3/public_html/core/model/modx/modrequest.class.php(133): modX->invokeEvent('OnLoadWebDocume...')
#3 /home/portabl3/public_html/core/model/modx/modrequest.class.php(122): modRequest->prepareResponse()
#4 /home/portabl3/public_html/core/model/modx/modx.class.php(1455): modRequest->handleRequest()
#5 /home/portabl3/public_html/index.php(54): modX->handleRequest()
#6 {main}
  thrown in /home/portabl3/public_html/core/cache/includes/elements/modplugin/23.include.cache.php on line 20

That’s an error coming from the plugin with ID 23 - what plugin is that and what are the first 20 or so lines of that?

 * Glossary Term Highlighter Plugin
 * @package glossary
 * @subpackage plugin
 * @var modX $modx
 * @var array $scriptProperties

$className = 'Glossary' . $modx->event->name;

$corePath = $modx->getOption('glossary.core_path', null, $modx->getOption('core_path') . 'components/glossary/');
/** @var GlossaryBase $glossary */
$glossary = $modx->getService('glossary', 'GlossaryBase', $corePath . 'model/glossary/', array(
    'core_path' => $corePath

$modx->loadClass('GlossaryPlugin', $glossary->getOption('modelPath') . 'glossary/events/', true, true);
$modx->loadClass($className, $glossary->getOption('modelPath') . 'glossary/events/', true, true);
if (class_exists($className)) {
    /** @var GlossaryPlugin $handler */
    $handler = new $className($modx, $scriptProperties);


It’s the Glossary Plugin apparently…

Yeah, looks like that is having issues loading the GlossaryBase class. Perhaps due to file permissions or missing files. The MODX error log (core/cache/logs/error.log) may have a bit more information.

Not quite sure how a regular upgrade would cause such an issue though…

How did you perform the upgrade?

I’m sorry you guys… I’ve long since fixed the issue. Thank you guys…

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