statement closed (mysql, HELP)

Hi,

I have problem with database connection.
My commands not work (I don't know why ;c This plugin is one of the few which i create with using mysql connection)
And message in console :

Code:

Communications link failure

and

Code:

No operations allowed after statement closed.

This is my code:
http://pastebin.com/9YmjmUrZ

 

The plugin its work and commands OK but after some time in console display this:

Communications link failure

The last packet successfully received from the server was 250,415 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds ago.

And when I use command after text in console, the command not work and display this:
No operations allowed after statement closed.

Reload fix this but this is repeated again...

 

You should make a generic MySQL class with functions for queries, opening, and closing, then have a class that handles data management. You don't want to have a connection open over a length of time, just open it when needed and close it after.