MediaWiki internal error.

Original exception: [71558bb97f4c4b8d5b9d44b2] /index.php?title=Special:RecentChangesLinked&from=20140729170334&hideanons=1&target=Python Wikimedia\Rdbms\DBUnexpectedError from line 992 of /home/wikefzug/public_html/includes/libs/rdbms/database/Database.php: DB connection was already closed
Backtrace:
#0 /home/wikefzug/public_html/includes/libs/rdbms/database/Database.php(1268): Wikimedia\Rdbms\Database->assertHasConnectionHandle()
#1 /home/wikefzug/public_html/includes/libs/rdbms/database/Database.php(1237): Wikimedia\Rdbms\Database->executeQuery(string, string, integer)
#2 /home/wikefzug/public_html/includes/libs/rdbms/database/Database.php(1921): Wikimedia\Rdbms\Database->query(string, string, integer)
#3 /home/wikefzug/public_html/includes/libs/rdbms/database/Database.php(1783): Wikimedia\Rdbms\Database->select(string, array, array, string, array, array)
#4 /home/wikefzug/public_html/includes/libs/rdbms/database/DBConnRef.php(68): Wikimedia\Rdbms\Database->selectFieldValues(string, string, array, string)
#5 /home/wikefzug/public_html/includes/libs/rdbms/database/DBConnRef.php(306): Wikimedia\Rdbms\DBConnRef->__call(string, array)
#6 /home/wikefzug/public_html/includes/changetags/ChangeTags.php(1526): Wikimedia\Rdbms\DBConnRef->selectFieldValues(string, string, array, string)
#7 /home/wikefzug/public_html/includes/libs/objectcache/wancache/WANObjectCache.php(1529): ChangeTags::{closure}(boolean, integer, array, NULL, array)
#8 /home/wikefzug/public_html/includes/libs/objectcache/wancache/WANObjectCache.php(1376): WANObjectCache->fetchOrRegenerate(string, integer, Closure, array, array)
#9 /home/wikefzug/public_html/includes/changetags/ChangeTags.php(1535): WANObjectCache->getWithSetCallback(string, integer, Closure, array)
#10 /home/wikefzug/public_html/includes/changetags/ChangeTags.php(1500): ChangeTags::listExplicitlyDefinedTags()
#11 /home/wikefzug/public_html/includes/changetags/ChangeTags.php(949): ChangeTags::listDefinedTags()
#12 /home/wikefzug/public_html/includes/specials/SpecialRecentChanges.php(695): ChangeTags::buildTagFilterSelector(string, boolean, RequestContext)
#13 /home/wikefzug/public_html/includes/specials/SpecialRecentChangesLinked.php(240): SpecialRecentChanges->getExtraOptions(FormOptions)
#14 /home/wikefzug/public_html/includes/specials/SpecialRecentChanges.php(520): SpecialRecentChangesLinked->getExtraOptions(FormOptions)
#15 /home/wikefzug/public_html/includes/specialpage/ChangesListSpecialPage.php(1652): SpecialRecentChanges->doHeader(FormOptions, integer)
#16 /home/wikefzug/public_html/includes/specialpage/ChangesListSpecialPage.php(1663): ChangesListSpecialPage->webOutputHeader(integer, FormOptions)
#17 /home/wikefzug/public_html/includes/specialpage/ChangesListSpecialPage.php(678): ChangesListSpecialPage->webOutput(Wikimedia\Rdbms\ResultWrapper, FormOptions)
#18 /home/wikefzug/public_html/includes/specials/SpecialRecentChanges.php(172): ChangesListSpecialPage->execute(NULL)
#19 /home/wikefzug/public_html/includes/specialpage/SpecialPage.php(600): SpecialRecentChanges->execute(NULL)
#20 /home/wikefzug/public_html/includes/specialpage/SpecialPageFactory.php(635): SpecialPage->run(NULL)
#21 /home/wikefzug/public_html/includes/MediaWiki.php(307): MediaWiki\SpecialPage\SpecialPageFactory->executePath(Title, RequestContext)
#22 /home/wikefzug/public_html/includes/MediaWiki.php(947): MediaWiki->performRequest()
#23 /home/wikefzug/public_html/includes/MediaWiki.php(547): MediaWiki->main()
#24 /home/wikefzug/public_html/index.php(53): MediaWiki->run()
#25 /home/wikefzug/public_html/index.php(46): wfIndexMain()
#26 {main}

Exception caught inside exception handler: [71558bb97f4c4b8d5b9d44b2] /index.php?title=Special:RecentChangesLinked&from=20140729170334&hideanons=1&target=Python InvalidArgumentException from line 58 of /home/wikefzug/public_html/includes/libs/rdbms/database/DBConnRef.php: Missing lazy connection arguments.
Backtrace:
#0 /home/wikefzug/public_html/includes/libs/rdbms/loadbalancer/LoadBalancer.php(1034): Wikimedia\Rdbms\DBConnRef->__construct(Wikimedia\Rdbms\LoadBalancer, boolean, integer)
#1 /home/wikefzug/public_html/includes/cache/LinkBatch.php(253): Wikimedia\Rdbms\LoadBalancer->getConnectionRef(integer)
#2 /home/wikefzug/public_html/includes/cache/LinkBatch.php(186): LinkBatch->doQuery()
#3 /home/wikefzug/public_html/includes/cache/LinkBatch.php(175): LinkBatch->executeInto(LinkCache)
#4 /home/wikefzug/public_html/includes/skins/Skin.php(313): LinkBatch->execute()
#5 /home/wikefzug/public_html/includes/skins/Skin.php(177): Skin->preloadExistence()
#6 /home/wikefzug/public_html/includes/skins/SkinTemplate.php(140): Skin->initPage(OutputPage)
#7 /home/wikefzug/public_html/includes/OutputPage.php(2624): SkinTemplate->outputPage()
#8 /home/wikefzug/public_html/includes/exception/MWExceptionRenderer.php(153): OutputPage->output()
#9 /home/wikefzug/public_html/includes/exception/MWExceptionRenderer.php(65): MWExceptionRenderer::reportHTML(Wikimedia\Rdbms\DBUnexpectedError)
#10 /home/wikefzug/public_html/includes/exception/MWExceptionHandler.php(106): MWExceptionRenderer::output(Wikimedia\Rdbms\DBUnexpectedError, integer)
#11 /home/wikefzug/public_html/includes/exception/MWExceptionHandler.php(185): MWExceptionHandler::report(Wikimedia\Rdbms\DBUnexpectedError)
#12 /home/wikefzug/public_html/includes/MediaWiki.php(580): MWExceptionHandler::handleException(Wikimedia\Rdbms\DBUnexpectedError, string)
#13 /home/wikefzug/public_html/index.php(53): MediaWiki->run()
#14 /home/wikefzug/public_html/index.php(46): wfIndexMain()
#15 {main}