Forum Fatal error: Xcache not installed in [path]/includes/class_datastore.php on line 528
 

Just moved to a new server. Had xcache installed previously. NOT installed on new server.

vBulletin Suite 4.2.0 PL3 with latest vBSEO.

Cannot load the forum or the AdminCP because in both cases I get the error:

Fatal error: Xcache not installed in [path]/includes/class_datastore.php on line 528

From config.php:

PHP Code:
// ****** DATASTORE CACHE CONFIGURATION *****
// Here you can configure different methods for caching datastore items.
// vB_Datastore_Filecache - to use includes/datastore/datastore_cache.php
// vB_Datastore_APC - to use APC
// vB_Datastore_XCache - to use XCache
// vB_Datastore_Memcached - to use a Memcache server, more configuration below
$config['Datastore']['class'] = 'vB_Datastore_Filecache';

// ******** DATASTORE PREFIX ******
// If you are using a PHP Caching system (APC, XCache, eAccelerator) with more
// than one set of forums installed on your host, you *may* need to use a prefix
// so that they do not try to use the same variable within the cache.
// This works in a similar manner to the database table prefix.
// $config['Datastore']['prefix'] = '';

// It is also necessary to specify the hostname or IP address and the port the server is listening on
/*
$config['Datastore']['class'] = 'vB_Datastore_Memcached';
$i = 0;
// First Server
$i++;
$config['Misc']['memcacheserver'][$i] = '127.0.0.1';
$config['Misc']['memcacheport'][$i] = 11211;
$config['Misc']['memcachepersistent'][$i] = true;
$config['Misc']['memcacheweight'][$i] = 1;
$config['Misc']['memcachetimeout'][$i] = 1;
$config['Misc']['memcacheretry_interval'][$i] = 15;
*/

Using vBSEO but Xcache disabled in vBSEO as well using the config file.

Tried disabling hooks - no change.

How do I access the forum and get around this error? And why is the error even occurring?

- - - Updated - - -

Update:

Tried again to disable hooks using

PHP Code:
define('DISABLE_HOOKS', true);

in config.php

This time I was able to load the forum and enter the AdminCP.

I cleared the datastore by disabling and then enabling one of the installed plugins.

Removed the disable_hooks line from config.php

Forum is now accessible and working normally.

Very weird....