How do I fix this database error?

[JMEWLS`]

PHP Code:

mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: User ********* already has more than 'max_user_connections' active connections
/home/******/public_html/forums/includes/class_core.php on line 311 

[Lynne]

See this page in the manual - Common MySQL Error Messages
You will probably have to ask your host to raise the maximum number of connections they allow.