MediaWiki internal error.

Original exception: exception 'ErrorPageError' with message 'El título de la página solicitada esta vacío, no es válido, o es un enlace interlenguaje o interwiki incorrecto.' in /home/htdocs/mediawiki/phase3/includes/Wiki.php:176
Stack trace:
#0 /home/htdocs/mediawiki/phase3/includes/Wiki.php(55): MediaWiki->initializeSpecialCases(Object(Title), Object(OutputPage), Object(WebRequest))
#1 /home/htdocs/mediawiki/phase3/index.php(92): MediaWiki->initialize(Object(Title), NULL, Object(OutputPage), Object(User), Object(WebRequest))
#2 {main}

Exception caught inside exception handler: exception 'DBConnectionError' with message 'DB connection error: Lost connection to MySQL server at 'reading initial communication packet', system error: 111 (euskaljai.sindominio.net)' in /home/htdocs/mediawiki/phase3/includes/Database.php:441
Stack trace:
#0 /home/htdocs/mediawiki/phase3/includes/LoadBalancer.php(642): Database->reportConnectionError('Unknown error (...')
#1 /home/htdocs/mediawiki/phase3/includes/LoadBalancer.php(409): LoadBalancer->reportConnectionError(Object(DatabaseMysql))
#2 /home/htdocs/mediawiki/phase3/includes/GlobalFunctions.php(2393): LoadBalancer->getConnection(-1, Array, false)
#3 /home/htdocs/mediawiki/phase3/includes/LinkCache.php(158): wfGetDB(-1)
#4 /home/htdocs/mediawiki/phase3/includes/Title.php(1849): LinkCache->addLinkObj(Object(Title))
#5 /home/htdocs/mediawiki/phase3/includes/Linker.php(249): Title->getArticleID()
#6 /home/htdocs/mediawiki/phase3/includes/OutputPage.php(1268): Linker->makeLinkObj(Object(Title))
#7 /home/htdocs/mediawiki/phase3/includes/OutputPage.php(1299): OutputPage->addReturnTo(Object(Title))
#8 /home/htdocs/mediawiki/phase3/includes/OutputPage.php(957): OutputPage->returnToMain()
#9 /home/htdocs/mediawiki/phase3/includes/Exception.php(239): OutputPage->showErrorPage('badtitle', 'badtitletext')
#10 /home/htdocs/mediawiki/phase3/includes/Exception.php(257): ErrorPageError->report()
#11 /home/htdocs/mediawiki/phase3/includes/Exception.php(291): wfReportException(Object(ErrorPageError))
#12 [internal function]: wfExceptionHandler(Object(ErrorPageError))
#13 {main}