Disable site_notice

Edit the file path_to_dokuwiki/lib/tpl/vector/conf/default.php (it is a good idea to create a backup of the file before change anything).

Look for the line:

$conf["vector_sitenotice"]           = true; //TRUE: use/show sitenotice

and modify it:

$conf["vector_sitenotice"]           = false; //TRUE: use/show sitenotice

Then go to the Admin pannel, Configuration Manager and search the option “ Show site wide notice?”. Uncheck it.