MyBB SQL Error

[alsofts]

When I Opening My Forum I am getting this message

my url : http://alsofts.com/forums

MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
1040 - Too many connections
Query:
[READ] Unable to connect to MySQL server

Please contact the MyBB Group for support.

What Is This error i got this message from 10 minute before and still it is present

[Matt]

Moved to support, isn't a bug.

You need to ask your host to increase your max_user_connextions setting.

[alsofts]

Thank You Matt Can You Say for a normal site what is the maximum user connections.

and i say to my hosting provider