url help me fix this forum

I'm using 6.6.4 DCMS. But there is an error with this scenario. When I write the url of a site and post messages on forums, then clicking your web site url that can not move to this address. I need to fix this problem like? Help me. Thank you.

Please ask your question on this site: http://dcms-help.ru/

this site on russian language. translate it by google translate