MediaWiki internal error.
Original exception: [ZcpS4rtNjlFSMx2ojtXr0gAAAIQ] /bullpen/List_of_Major_League_Baseball_principal_owners Wikimedia\Rdbms\DBQueryDisconnectedError: A database query error has occurred. Did you forget to run your application's database schema updater after upgrading or after adding a new extension?
Please see https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:Upgrading and https://www.mediawiki.org/wiki/Special:MyLanguage/Manual:How_to_debug for more information.
A connection error occurred during a query.
Query: SELECT page_id,page_namespace,page_title,page_is_redirect,page_is_new,page_latest,page_touched,page_len,page_content_model FROM `page` WHERE (page_namespace = 1 AND page_title = 'List_of_Major_League_Baseball_principal_owners')
Function: LinkBatch::doQuery (for Skin::preloadExistence)
Error: 2006 MySQL server has gone away
Backtrace:
from /home/br/www/bpv/includes/libs/rdbms/database/Database.php(1616)
#0 /home/br/www/bpv/includes/libs/rdbms/database/Database.php(1602): Wikimedia\Rdbms\Database->getQueryException(string, integer, string, string)
#1 /home/br/www/bpv/includes/libs/rdbms/database/Database.php(1576): Wikimedia\Rdbms\Database->getQueryExceptionAndLog(string, integer, string, string)
#2 /home/br/www/bpv/includes/libs/rdbms/database/Database.php(952): Wikimedia\Rdbms\Database->reportQueryError(string, integer, string, string, boolean)
#3 /home/br/www/bpv/includes/libs/rdbms/database/Database.php(1711): Wikimedia\Rdbms\Database->query(string, string, integer)
#4 /home/br/www/bpv/includes/libs/rdbms/database/DBConnRef.php(103): Wikimedia\Rdbms\Database->select(string, array, string, string)
#5 /home/br/www/bpv/includes/libs/rdbms/database/DBConnRef.php(326): Wikimedia\Rdbms\DBConnRef->__call(string, array)
#6 /home/br/www/bpv/includes/cache/LinkBatch.php(347): Wikimedia\Rdbms\DBConnRef->select(string, array, string, string)
#7 /home/br/www/bpv/includes/cache/LinkBatch.php(245): LinkBatch->doQuery()
#8 /home/br/www/bpv/includes/cache/LinkBatch.php(219): LinkBatch->executeInto(LinkCache)
#9 /home/br/www/bpv/includes/skins/Skin.php(460): LinkBatch->execute()
#10 /home/br/www/bpv/includes/skins/Skin.php(305): Skin->preloadExistence()
#11 /home/br/www/bpv/skins/Klecko/Klecko.skin.php(22): Skin->initPage(OutputPage)
#12 /home/br/www/bpv/includes/skins/SkinTemplate.php(173): SkinKlecko->initPage(OutputPage)
#13 /home/br/www/bpv/includes/OutputPage.php(2874): SkinTemplate->outputPage()
#14 /home/br/www/bpv/includes/MediaWiki.php(922): OutputPage->output(boolean)
#15 /home/br/www/bpv/includes/MediaWiki.php(562): MediaWiki->main()
#16 /home/br/www/bpv/index.php(50): MediaWiki->run()
#17 /home/br/www/bpv/index.php(46): wfIndexMain()
#18 {main}
Exception caught inside exception handler: [ZcpS4rtNjlFSMx2ojtXr0gAAAIQ] /bullpen/List_of_Major_League_Baseball_principal_owners Wikimedia\Rdbms\DBConnectionError: Cannot access the database: No such file or directory (localhost)
Backtrace:
from /home/br/www/bpv/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1477)
#0 /home/br/www/bpv/includes/libs/rdbms/loadbalancer/LoadBalancer.php(993): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
#1 /home/br/www/bpv/includes/libs/rdbms/loadbalancer/LoadBalancer.php(944): Wikimedia\Rdbms\LoadBalancer->getServerConnection(integer, string, integer)
#2 /home/br/www/bpv/includes/libs/rdbms/database/DBConnRef.php(95): Wikimedia\Rdbms\LoadBalancer->getConnectionInternal(integer, array, string, integer)
#3 /home/br/www/bpv/includes/libs/rdbms/database/DBConnRef.php(101): Wikimedia\Rdbms\DBConnRef->ensureConnection()
#4 /home/br/www/bpv/includes/libs/rdbms/database/DBConnRef.php(396): Wikimedia\Rdbms\DBConnRef->__call(string, array)
#5 /home/br/www/bpv/includes/cache/LinkBatch.php(385): Wikimedia\Rdbms\DBConnRef->makeWhereFrom2d(array, string, string)
#6 /home/br/www/bpv/includes/cache/LinkBatch.php(339): LinkBatch->constructSet(string, Wikimedia\Rdbms\DBConnRef)
#7 /home/br/www/bpv/includes/cache/LinkBatch.php(245): LinkBatch->doQuery()
#8 /home/br/www/bpv/includes/cache/LinkBatch.php(219): LinkBatch->executeInto(LinkCache)
#9 /home/br/www/bpv/includes/skins/Skin.php(460): LinkBatch->execute()
#10 /home/br/www/bpv/includes/skins/Skin.php(305): Skin->preloadExistence()
#11 /home/br/www/bpv/skins/Klecko/Klecko.skin.php(22): Skin->initPage(OutputPage)
#12 /home/br/www/bpv/includes/skins/SkinTemplate.php(173): SkinKlecko->initPage(OutputPage)
#13 /home/br/www/bpv/includes/OutputPage.php(2874): SkinTemplate->outputPage()
#14 /home/br/www/bpv/includes/exception/MWExceptionRenderer.php(183): OutputPage->output()
#15 /home/br/www/bpv/includes/exception/MWExceptionRenderer.php(102): MWExceptionRenderer::reportHTML(Wikimedia\Rdbms\DBQueryDisconnectedError)
#16 /home/br/www/bpv/includes/exception/MWExceptionHandler.php(131): MWExceptionRenderer::output(Wikimedia\Rdbms\DBQueryDisconnectedError, integer)
#17 /home/br/www/bpv/includes/exception/MWExceptionHandler.php(248): MWExceptionHandler::report(Wikimedia\Rdbms\DBQueryDisconnectedError)
#18 /home/br/www/bpv/includes/MediaWiki.php(581): MWExceptionHandler::handleException(Wikimedia\Rdbms\DBQueryDisconnectedError, string)
#19 /home/br/www/bpv/index.php(50): MediaWiki->run()
#20 /home/br/www/bpv/index.php(46): wfIndexMain()
#21 {main}