Board Thread:Support Requests - Getting Technical/@comment-27567958-20151205231825

I need Help with my chat's welcome mesage i changed it but it still doesn't work

here's the link:http://mememe.wikia.com/wiki/MediaWiki:Chat-welcome-message

if someone could help i'd be nice ;-;

some one told me to purge the page but i don't know how to do that either 