Error in Asterisk server

hello,
please i need help. my asterisk FreePBX. it was given me a small problem, and i reinstall it and now i have this message on the main page ( FreePBX notice|) retrieve conf failed. config not applied and asterisk manager connection failure.
thanks

This room, they dont help at all.

This is not a support sub-forum.

Moreover it is not a FreePBX forum.

The FreePBX forums are at freepbx.org/forum

…not to mention that the first post doesn’t provide any useful information for tracking down the problem…

oh ok but at least someone must say to me because I am a new in Asterisk server. Thanks you guys.