When I try to install 1.36-wmf.18, mw-config/index.php?css=1
throw error:(vendor copy from ver.1.35.1 .tar.gz)
[7fb50ba4fee236f45e644fc0] /core/mw-config/index.php?css=1 Wikimedia\Services\ServiceDisabledException: Service disabled: DBLoadBalancer Backtrace: from $IP\vendor\wikimedia\services\src\ServiceContainer.php(412) #0 $IP\includes\MediaWikiServices.php(710): Wikimedia\Services\ServiceContainer->getService(string) #1 $IP\includes\GlobalFunctions.php(2481): MediaWiki\MediaWikiServices->getDBLoadBalancer() #2 $IP\includes\GlobalFunctions.php(2467): wfGetLB(boolean) #3 $IP\includes\resourceloader\MessageBlobStore.php(156): wfGetDB(integer) #4 $IP\includes\resourceloader\MessageBlobStore.php(120): MessageBlobStore->recacheMessageBlob(string, ResourceLoaderSkinModule, string) #5 $IP\includes\resourceloader\MessageBlobStore.php(85): MessageBlobStore->getBlobs(array, string) #6 $IP\includes\resourceloader\ResourceLoaderModule.php(588): MessageBlobStore->getBlob(ResourceLoaderSkinModule, string) #7 $IP\includes\resourceloader\ResourceLoaderLessVarFileModule.php(113): ResourceLoaderModule->getMessageBlob(ResourceLoaderContext) #8 $IP\includes\resourceloader\ResourceLoaderSkinModule.php(529): ResourceLoaderLessVarFileModule->getLessVars(ResourceLoaderContext) #9 $IP\includes\resourceloader\ResourceLoaderFileModule.php(1098): ResourceLoaderSkinModule->getLessVars(ResourceLoaderContext) #10 $IP\includes\resourceloader\ResourceLoaderFileModule.php(990): ResourceLoaderFileModule->compileLessString(string, string, ResourceLoaderContext) #11 $IP\includes\resourceloader\ResourceLoaderFileModule.php(966): ResourceLoaderFileModule->processStyle(string, string, ResourceLoaderFilePath, ResourceLoaderContext) #12 $IP\includes\resourceloader\ResourceLoaderFileModule.php(943): ResourceLoaderFileModule->readStyleFile(ResourceLoaderFilePath, ResourceLoaderContext) #13 $IP\includes\installer\WebInstallerOutput.php(160): ResourceLoaderFileModule->readStyleFiles(array, ResourceLoaderContext) #14 $IP\includes\installer\WebInstaller.php(1225): WebInstallerOutput->getCSS() #15 $IP\includes\installer\WebInstaller.php(178): WebInstaller->outputCss() #16 $IP\mw-config\index.php(82): WebInstaller->execute(array) #17 $IP\mw-config\index.php(40): wfInstallerMain() #18 {main}
what happend?