Add the cache settings to fix login the php conf

Add the line in the LocalConfig.php file.

Install/Templates/mediawiki/LocalSettings.php

@@ -147,3 +147,5 @@ wfLoadExtension( 'WikiEditor' );
 # End of automatically generated settings.
 # Add more configuration options below.
 
+# Fix login error
+$wgSessionCacheType = CACHE_DB;