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(Cannot access the database)
Backtrace:
#0 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(897): Database->reportConnectionError('Unknown error (...')
#1 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\libs\rdbms\loadbalancer\LoadBalancer.php(572): LoadBalancer->reportConnectionError()
#2 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\GlobalFunctions.php(3075): LoadBalancer->getConnection(-1, Array, false)
#3 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\Revision.php(322): wfGetDB(-1)
#4 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\Revision.php(111): Revision::newFromConds(Array, 0)
#5 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\MediaWiki.php(105): Revision::newFromId(16968)
#6 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\MediaWiki.php(136): MediaWiki->parseTitle()
#7 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\MediaWiki.php(766): MediaWiki->getTitle()
#8 E:\xampp-1.8.3.4\htdocs\mediawiki\includes\MediaWiki.php(512): MediaWiki->main()
#9 E:\xampp-1.8.3.4\htdocs\mediawiki\index.php(43): MediaWiki->run()
#10 {main}