MediaWiki internal error.

Original exception: exception 'MWException' with message 'Detected bug in an extension! Hook FCKeditor_MediaWiki::onCustomEditor failed to return a value; should return true to continue hook processing or false to abort.' in /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Hooks.php:137
Stack trace:
#0 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Wiki.php(484): wfRunHooks('CustomEditor', Array)
#1 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Wiki.php(59): MediaWiki->performAction(Object(StubObject), Object(Article), Object(Title), Object(User), Object(WebRequest))
#2 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/index.php(93): MediaWiki->initialize(Object(Title), Object(Article), Object(StubObject), Object(User), Object(WebRequest))
#3 {main}

Exception caught inside exception handler: exception 'DBConnectionError' with message 'DB connection error: Access denied for user 'db95445'@'205.186.184.12' (using password: YES) (internal-db.s95445.gridserver.com)' in /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/db/Database.php:461
Stack trace:
#0 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/db/LoadBalancer.php(686): Database->reportConnectionError('Unknown error (...')
#1 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/db/LoadBalancer.php(453): LoadBalancer->reportConnectionError(Object(DatabaseMysql))
#2 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/BagOStuff.php(442): LoadBalancer->getConnection(-2)
#3 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/BagOStuff.php(492): MediaWikiBagOStuff->_getDB()
#4 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/BagOStuff.php(316): MediaWikiBagOStuff->getTableName()
#5 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/BagOStuff.php(240): SqlBagOStuff->_query('SELECT value,ex...', 'db95445_doriwik...')
#6 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/MessageCache.php(246): SqlBagOStuff->get('db95445_doriwik...')
#7 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/MessageCache.php(606): MessageCache->load('en')
#8 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/MessageCache.php(543): MessageCache->getMsgFromNamespace('Internalerror', 'en')
#9 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/GlobalFunctions.php(467): MessageCache->get('internalerror', true, false)
#10 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/GlobalFunctions.php(432): wfMsgGetKey('internalerror', true, false, true)
#11 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/GlobalFunctions.php(338): wfMsgReal('internalerror', Array, true)
#12 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Exception.php(114): wfMsg('internalerror')
#13 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Exception.php(139): MWException->getPageTitle()
#14 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Exception.php(174): MWException->reportHTML()
#15 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Exception.php(260): MWException->report()
#16 /nfs/c06/h08/mnt/95445/domains/catdori.com/html/dori/includes/Exception.php(294): wfReportException(Object(MWException))
#17 [internal function]: wfExceptionHandler(Object(MWException))
#18 {main}