MediaWiki internal error.

Original exception: [dd1baa9e2ac261ce23725cd7] /wiki/User:Admin Wikimedia\Rdbms\DBQueryError: 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.

Error 1146: Table 'wiki_swmath.block' doesn't exist
Function: MediaWiki\Block\DatabaseBlockStore::newLoad
Query: SELECT bl_id,bt_address,bt_user,bt_user_text,bl_timestamp,bt_auto,bl_anon_only,bl_create_account,bl_enable_autoblock,bl_expiry,bl_deleted,bl_block_email,bl_allow_usertalk,bl_parent_block_id,bl_sitewide,bl_by_actor,block_by_actor.actor_user AS `bl_by`,block_by_actor.actor_name AS `bl_by_text`,comment_bl_reason.comment_text AS `bl_reason_text`,comment_bl_reason.comment_data AS `bl_reason_data`,comment_bl_reason.comment_id AS `bl_reason_cid` FROM `block` JOIN `block_target` ON ((bt_id=bl_target)) JOIN `actor` `block_by_actor` ON ((actor_id=bl_by_actor)) JOIN `comment` `comment_bl_reason` ON ((comment_bl_reason.comment_id = bl_reason_id)) WHERE ((bt_user = 1))

Backtrace:
from /var/www/html/includes/libs/rdbms/database/Database.php(1192)
#0 /var/www/html/includes/libs/rdbms/database/Database.php(1176): Wikimedia\Rdbms\Database->getQueryException(string, int, string, string)
#1 /var/www/html/includes/libs/rdbms/database/Database.php(1150): Wikimedia\Rdbms\Database->getQueryExceptionAndLog(string, int, string, string)
#2 /var/www/html/includes/libs/rdbms/database/Database.php(643): Wikimedia\Rdbms\Database->reportQueryError(string, int, string, string, bool)
#3 /var/www/html/includes/libs/rdbms/database/Database.php(1339): Wikimedia\Rdbms\Database->query(Wikimedia\Rdbms\Query, string)
#4 /var/www/html/includes/libs/rdbms/database/DBConnRef.php(127): Wikimedia\Rdbms\Database->select(array, array, array, string, array, array)
#5 /var/www/html/includes/libs/rdbms/database/DBConnRef.php(351): Wikimedia\Rdbms\DBConnRef->__call(string, array)
#6 /var/www/html/includes/libs/rdbms/querybuilder/SelectQueryBuilder.php(746): Wikimedia\Rdbms\DBConnRef->select(array, array, array, string, array, array)
#7 /var/www/html/includes/block/DatabaseBlockStore.php(372): Wikimedia\Rdbms\SelectQueryBuilder->fetchResultSet()
#8 /var/www/html/includes/block/DatabaseBlockStore.php(658): MediaWiki\Block\DatabaseBlockStore->newLoad(MediaWiki\User\UserIdentityValue, int, bool, null)
#9 /var/www/html/includes/block/DatabaseBlockStore.php(627): MediaWiki\Block\DatabaseBlockStore->newListFromTarget(string, null, bool)
#10 /var/www/html/includes/page/Article.php(1114): MediaWiki\Block\DatabaseBlockStore->newFromTarget(string, null)
#11 /var/www/html/includes/page/Article.php(897): Article->getRobotPolicy(string, MediaWiki\Parser\ParserOutput)
#12 /var/www/html/includes/page/Article.php(873): Article->doOutputMetaData(MediaWiki\Parser\ParserOutput, MediaWiki\Output\OutputPage)
#13 /var/www/html/includes/page/Article.php(545): Article->generateContentOutput(MediaWiki\User\User, ParserOptions, int, MediaWiki\Output\OutputPage, array)
#14 /var/www/html/includes/actions/ViewAction.php(78): Article->view()
#15 /var/www/html/includes/actions/ActionEntryPoint.php(731): ViewAction->show()
#16 /var/www/html/includes/actions/ActionEntryPoint.php(508): MediaWiki\Actions\ActionEntryPoint->performAction(Article, MediaWiki\Title\Title)
#17 /var/www/html/includes/actions/ActionEntryPoint.php(145): MediaWiki\Actions\ActionEntryPoint->performRequest()
#18 /var/www/html/includes/MediaWikiEntryPoint.php(200): MediaWiki\Actions\ActionEntryPoint->execute()
#19 /var/www/html/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#20 {main}

Exception caught inside exception handler: [dd1baa9e2ac261ce23725cd7] /wiki/User:Admin Wikimedia\Rdbms\DBQueryError: 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.

Error 1146: Table 'wiki_swmath.block' doesn't exist
Function: MediaWiki\Block\DatabaseBlockStore::newLoad
Query: SELECT bl_id,bt_address,bt_user,bt_user_text,bl_timestamp,bt_auto,bl_anon_only,bl_create_account,bl_enable_autoblock,bl_expiry,bl_deleted,bl_block_email,bl_allow_usertalk,bl_parent_block_id,bl_sitewide,bl_by_actor,block_by_actor.actor_user AS `bl_by`,block_by_actor.actor_name AS `bl_by_text`,comment_bl_reason.comment_text AS `bl_reason_text`,comment_bl_reason.comment_data AS `bl_reason_data`,comment_bl_reason.comment_id AS `bl_reason_cid` FROM `block` JOIN `block_target` ON ((bt_id=bl_target)) JOIN `actor` `block_by_actor` ON ((actor_id=bl_by_actor)) JOIN `comment` `comment_bl_reason` ON ((comment_bl_reason.comment_id = bl_reason_id)) WHERE ((bt_user = 1))

Backtrace:
from /var/www/html/includes/libs/rdbms/database/Database.php(1192)
#0 /var/www/html/includes/libs/rdbms/database/Database.php(1176): Wikimedia\Rdbms\Database->getQueryException(string, int, string, string)
#1 /var/www/html/includes/libs/rdbms/database/Database.php(1150): Wikimedia\Rdbms\Database->getQueryExceptionAndLog(string, int, string, string)
#2 /var/www/html/includes/libs/rdbms/database/Database.php(643): Wikimedia\Rdbms\Database->reportQueryError(string, int, string, string, bool)
#3 /var/www/html/includes/libs/rdbms/database/Database.php(1339): Wikimedia\Rdbms\Database->query(Wikimedia\Rdbms\Query, string)
#4 /var/www/html/includes/libs/rdbms/database/DBConnRef.php(127): Wikimedia\Rdbms\Database->select(array, array, array, string, array, array)
#5 /var/www/html/includes/libs/rdbms/database/DBConnRef.php(351): Wikimedia\Rdbms\DBConnRef->__call(string, array)
#6 /var/www/html/includes/libs/rdbms/querybuilder/SelectQueryBuilder.php(746): Wikimedia\Rdbms\DBConnRef->select(array, array, array, string, array, array)
#7 /var/www/html/includes/block/DatabaseBlockStore.php(372): Wikimedia\Rdbms\SelectQueryBuilder->fetchResultSet()
#8 /var/www/html/includes/block/DatabaseBlockStore.php(658): MediaWiki\Block\DatabaseBlockStore->newLoad(MediaWiki\User\UserIdentityValue, int, bool, null)
#9 /var/www/html/includes/block/BlockManager.php(216): MediaWiki\Block\DatabaseBlockStore->newListFromTarget(MediaWiki\User\UserIdentityValue, null, bool)
#10 /var/www/html/includes/skins/Skin.php(649): MediaWiki\Block\BlockManager->getBlock(MediaWiki\User\UserIdentityValue, null)
#11 /var/www/html/includes/skins/Skin.php(1386): Skin->getRelevantUser()
#12 /var/www/html/includes/skins/Skin.php(1555): Skin->buildNavUrls()
#13 /var/www/html/includes/skins/SkinTemplate.php(609): Skin->buildSidebar()
#14 /var/www/html/includes/skins/SkinTemplate.php(186): SkinTemplate->getPortletsTemplateData()
#15 /var/www/html/includes/skins/SkinMustache.php(139): SkinTemplate->getTemplateData()
#16 /var/www/html/skins/Vector/includes/SkinVector22.php(330): SkinMustache->getTemplateData()
#17 /var/www/html/includes/skins/SkinMustache.php(92): MediaWiki\Skins\Vector\SkinVector22->getTemplateData()
#18 /var/www/html/includes/skins/SkinTemplate.php(179): SkinMustache->generateHTML()
#19 /var/www/html/includes/Output/OutputPage.php(3136): SkinTemplate->outputPage()
#20 /var/www/html/includes/exception/MWExceptionRenderer.php(189): MediaWiki\Output\OutputPage->output()
#21 /var/www/html/includes/exception/MWExceptionRenderer.php(108): MWExceptionRenderer::reportHTML(Wikimedia\Rdbms\DBQueryError)
#22 /var/www/html/includes/exception/MWExceptionHandler.php(133): MWExceptionRenderer::output(Wikimedia\Rdbms\DBQueryError, int)
#23 /var/www/html/includes/exception/MWExceptionHandler.php(237): MWExceptionHandler::report(Wikimedia\Rdbms\DBQueryError)
#24 /var/www/html/includes/MediaWikiEntryPoint.php(222): MWExceptionHandler::handleException(Wikimedia\Rdbms\DBQueryError, string)
#25 /var/www/html/includes/actions/ActionEntryPoint.php(82): MediaWiki\MediaWikiEntryPoint->handleTopLevelError(Wikimedia\Rdbms\DBQueryError)
#26 /var/www/html/includes/MediaWikiEntryPoint.php(206): MediaWiki\Actions\ActionEntryPoint->handleTopLevelError(Wikimedia\Rdbms\DBQueryError)
#27 /var/www/html/index.php(58): MediaWiki\MediaWikiEntryPoint->run()
#28 {main}