[36b024b5] /~islands/ Exception from line 851 of /u1/other/2010/islands/www/includes/db/Database.php: DatabaseBase::factory no viable database extension found for type 'mysql'

Backtrace:

#0 /u1/other/2010/islands/www/includes/db/LoadBalancer.php(720): DatabaseBase::factory(string, array)
#1 /u1/other/2010/islands/www/includes/db/LoadBalancer.php(593): LoadBalancer->reallyOpenConnection(array, boolean)
#2 /u1/other/2010/islands/www/includes/db/LoadBalancer.php(473): LoadBalancer->openConnection(integer, boolean)
#3 /u1/other/2010/islands/www/includes/GlobalFunctions.php(3662): LoadBalancer->getConnection(integer, array, boolean)
#4 /u1/other/2010/islands/www/includes/objectcache/SqlBagOStuff.php(139): wfGetDB(integer)
#5 /u1/other/2010/islands/www/includes/objectcache/SqlBagOStuff.php(226): SqlBagOStuff->getDB(integer)
#6 /u1/other/2010/islands/www/includes/objectcache/SqlBagOStuff.php(200): SqlBagOStuff->getMulti(array)
#7 /u1/other/2010/islands/www/includes/cache/MessageCache.php(301): SqlBagOStuff->get(string)
#8 /u1/other/2010/islands/www/includes/cache/MessageCache.php(895): MessageCache->load(string)
#9 /u1/other/2010/islands/www/includes/cache/MessageCache.php(814): MessageCache->getMsgFromNamespace(string, string)
#10 /u1/other/2010/islands/www/includes/cache/MessageCache.php(751): MessageCache->getMessageFromFallbackChain(Language, string, string, boolean)
#11 /u1/other/2010/islands/www/includes/Message.php(1003): MessageCache->get(string, boolean, Language)
#12 /u1/other/2010/islands/www/includes/Message.php(637): Message->fetchMessage()
#13 /u1/other/2010/islands/www/includes/Message.php(732): Message->toString()
#14 /u1/other/2010/islands/www/includes/Title.php(442): Message->text()
#15 /u1/other/2010/islands/www/includes/Wiki.php(121): Title::newMainPage()
#16 /u1/other/2010/islands/www/includes/Wiki.php(137): MediaWiki->parseTitle()
#17 /u1/other/2010/islands/www/includes/Wiki.php(514): MediaWiki->getTitle()
#18 /u1/other/2010/islands/www/includes/Wiki.php(447): MediaWiki->main()
#19 /u1/other/2010/islands/www/index.php(46): MediaWiki->run()
#20 {main}