Fatal error: Uncaught UnexpectedValueException: wgObjectCaches must have "wan-memcached" set (via wgWANObjectCaches) in /volume1/web/alWiki/includes/ServiceWiring.php:643
Stack trace:
#0 /volume1/web/alWiki/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer->{closure}(Object(MediaWiki\MediaWikiServices))
#1 /volume1/web/alWiki/vendor/wikimedia/services/src/ServiceContainer.php(416): Wikimedia\Services\ServiceContainer->createService('MainWANObjectCa...')
#2 /volume1/web/alWiki/includes/MediaWikiServices.php(901): Wikimedia\Services\ServiceContainer->getService('MainWANObjectCa...')
#3 /volume1/web/alWiki/includes/ServiceWiring.php(303): MediaWiki\MediaWikiServices->getMainWANObjectCache()
#4 /volume1/web/alWiki/vendor/wikimedia/services/src/ServiceContainer.php(447): Wikimedia\Services\ServiceContainer->{closure}(Object(MediaWiki\MediaWikiServices))
#5 /volume1/web/alWiki/vendor/wikimedia/services/src/ServiceContainer.php(416): Wikimedia\Services\ServiceContainer->createService('DBLoadBalancerF...')
#6 /volume1/web/alWiki/includes/MediaWikiServices.php(679): Wikimedia\Services\ServiceContainer->getService('DBLoadBalancerF...')
#7 /volume1/web/alWiki/includes/exception/MWExceptionHandler.php(135): MediaWiki\MediaWikiServices->getDBLoadBalancerFactory()
#8 /volume1/web/alWiki/includes/exception/MWExceptionHandler.php(184): MWExceptionHandler::rollbackMasterChangesAndLog(Object(UnexpectedValueException), 'mwe_handler')
#9 /volume1/web/alWiki/includes/exception/MWExceptionHandler.php(156): MWExceptionHandler::handleException(Object(UnexpectedValueException), 'mwe_handler')
#10 [internal function]: MWExceptionHandler::handleUncaughtException(Object(UnexpectedValueException))
#11 {main}
  thrown in /volume1/web/alWiki/includes/ServiceWiring.php on line 643