The forum is in read only mode.
I have a multilingual website, when placing ads, in the Russian version of the site it is displayed, but in English there.
Ads are shown by the AdAgency module which is a joomla module. Please be sure hat is set for all languages and not only for English.
JomSocial is the most complete, easy-to-use addon that turns Joomla CMS into a full -fledged, social networking site