MediaWiki internal error.

Original exception: [634cacbf075c3fd9f6aec9db] /index.php?title=TBFGK_88:5/Text&action=history Wikimedia\Rdbms\DBTransactionError from line 1415 of /home/erf-wiki/webroot/includes/libs/rdbms/loadbalancer/LoadBalancer.php: MediaWiki::preOutputCommit: Commit failed on server(s) 10.128.13.246: A database query error has occurred. Did you forget to run your application's database schema updater after upgrading?
Query: COMMIT
Function: MediaWiki::preOutputCommit
Error: 1927 Connection was killed (10.128.13.246)

Backtrace:
#0 /home/erf-wiki/webroot/includes/libs/rdbms/lbfactory/LBFactory.php(219): Wikimedia\Rdbms\LoadBalancer->commitMasterChanges(string)
#1 /home/erf-wiki/webroot/includes/libs/rdbms/lbfactory/LBFactorySimple.php(152): Wikimedia\Rdbms\LBFactory->Wikimedia\Rdbms\{closure}(Wikimedia\Rdbms\LoadBalancer, string, array)
#2 /home/erf-wiki/webroot/includes/libs/rdbms/lbfactory/LBFactory.php(221): Wikimedia\Rdbms\LBFactorySimple->forEachLB(Closure, array)
#3 /home/erf-wiki/webroot/includes/libs/rdbms/lbfactory/LBFactory.php(274): Wikimedia\Rdbms\LBFactory->forEachLBCallMethod(string, array)
#4 /home/erf-wiki/webroot/includes/MediaWiki.php(602): Wikimedia\Rdbms\LBFactory->commitMasterChanges(string, array)
#5 /home/erf-wiki/webroot/includes/MediaWiki.php(576): MediaWiki::preOutputCommit(RequestContext, NULL)
#6 /home/erf-wiki/webroot/includes/MediaWiki.php(530): MediaWiki->doPreOutputCommit()
#7 /home/erf-wiki/webroot/index.php(42): MediaWiki->run()
#8 {main}

Exception caught inside exception handler: [634cacbf075c3fd9f6aec9db] /index.php?title=TBFGK_88:5/Text&action=history Wikimedia\Rdbms\DBConnectionError from line 1180 of /home/erf-wiki/webroot/includes/libs/rdbms/loadbalancer/LoadBalancer.php: Cannot access the database: Unknown error (10.128.13.246)
Backtrace:
#0 /home/erf-wiki/webroot/includes/libs/rdbms/loadbalancer/LoadBalancer.php(768): Wikimedia\Rdbms\LoadBalancer->reportConnectionError()
#1 /home/erf-wiki/webroot/includes/GlobalFunctions.php(2776): Wikimedia\Rdbms\LoadBalancer->getConnection(integer, array, boolean)
#2 /home/erf-wiki/webroot/includes/cache/LinkBatch.php(199): wfGetDB(integer)
#3 /home/erf-wiki/webroot/includes/cache/LinkBatch.php(141): LinkBatch->doQuery()
#4 /home/erf-wiki/webroot/includes/cache/LinkBatch.php(130): LinkBatch->executeInto(LinkCache)
#5 /home/erf-wiki/webroot/includes/skins/Skin.php(302): LinkBatch->execute()
#6 /home/erf-wiki/webroot/includes/skins/Skin.php(163): Skin->preloadExistence()
#7 /home/erf-wiki/webroot/skins/Vector/includes/SkinVector.php(69): Skin->initPage(OutputPage)
#8 /home/erf-wiki/webroot/includes/skins/SkinTemplate.php(224): SkinVector->initPage(OutputPage)
#9 /home/erf-wiki/webroot/includes/OutputPage.php(2402): SkinTemplate->outputPage()
#10 /home/erf-wiki/webroot/includes/exception/MWExceptionRenderer.php(136): OutputPage->output()
#11 /home/erf-wiki/webroot/includes/exception/MWExceptionRenderer.php(53): MWExceptionRenderer::reportHTML(Wikimedia\Rdbms\DBTransactionError)
#12 /home/erf-wiki/webroot/includes/exception/MWExceptionHandler.php(75): MWExceptionRenderer::output(Wikimedia\Rdbms\DBTransactionError, integer)
#13 /home/erf-wiki/webroot/includes/exception/MWExceptionHandler.php(149): MWExceptionHandler::report(Wikimedia\Rdbms\DBTransactionError)
#14 /home/erf-wiki/webroot/includes/MediaWiki.php(552): MWExceptionHandler::handleException(Wikimedia\Rdbms\DBTransactionError)
#15 /home/erf-wiki/webroot/index.php(42): MediaWiki->run()
#16 {main}