[Error Message] 1105 (proxy) all backends are down

[Alimo1952]

Hi,
This is a new forum that I built a few days ago.. it only has 5 members. 
www.alfikra.us/freethought
Everything was going fine, but today I got this following message:
===========================================
MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1105 - (proxy) all backends are down
Query:
[READ] Unable to connect to MySQL server
Please contact the MyBB Group for technical support.
===========================================

---

Hi,
This is a new forum that I built a few days ago.. it only has 5 members. 
www.alfikra.us/freethought
Everything was going fine, but today I got this following message:
===========================================
MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1105 - (proxy) all backends are down
Query:
[READ] Unable to connect to MySQL server
Please contact the MyBB Group for technical support.
===========================================

Solved and the forum came back by itself..