[Poker Face]

I am being told by my hosting provider:

• The Max concurrent users is 15.
  
  
• It's concurrent users and that is for database connections. If you use a caching plugin for your program, then you can have more people connected.
  
  
• You would want to find a caching plugin for vbulletin.

What is a caching plugin and where can I find instructions here, for adding one?

--------------- Added [DATE]1287925344[/DATE] at [TIME]1287925344[/TIME] ---------------

I received 200 Database Errors, in a one minute stretch, on putting out one tweet to a new post, here is one example:

PHP Code:

Database error in vBulletin :

mysqli_real_connect() [<a href='function.mysqli-real-connect'>function.mysqli-real-connect</a>]: (42000/1203): User ptwheelr already has more than 'max_user_connections' active connections /home5/ptwheelr/public_html/brownave/forums/includes/class_core.php on line 1265

MySQL Error   : 
Error Number  : 
Request Date  : Saturday, October 23rd 2010 @ 04:59:58 PM
Error Date    : Saturday, October 23rd 2010 @ 04:59:59 PM
Script        : http://www.brownave.com/forums/showthread.php?351-Skin-cancer-check-ups&amp;amp;amp;amp;&amp;amp;amp;&amp;amp;&amp;&
Referrer      : 
IP Address    : 211.43.152.49
Username      : 
Classname     : vB_Database_MySQLi
MySQL Version : 


--------------- Added [DATE]1287925741[/DATE] at [TIME]1287925741[/TIME] ---------------

PHP Code:

Operating system Linux 
Architecture x86_64 
MySQL version 5.1.47-community-log 
cPanel Build 46156 
Apache version 2.2.16 
Kernel version 2.6.28-10.48.intel.E1000E.BHsmp 
PHP version 5.2.14