PHP/MySQL error messages

[luisr]

I am getting errors like these ocassionally in my board:

Warning: Supplied argument is not a valid MySQL result resource in /usr2/home/juanadiaz.org/htdocs/foro/Sources/Load.php on line 145

Warning: Supplied argument is not a valid MySQL result resource in /usr2/home/juanadiaz.org/htdocs/foro/index.php on line 64

Warning: Supplied argument is not a valid MySQL result resource in /usr2/home/juanadiaz.org/htdocs/foro/index.php on line 67

Warning: Supplied argument is not a valid MySQL result resource in /usr2/home/juanadiaz.org/htdocs/foro/Sources/Security.php on line 47

Warning: Supplied argument is not a valid MySQL result resource in /usr2/home/juanadiaz.org/htdocs/foro/Sources/Load.php on line 73

I did not pay much attention because I just clicked on the "home" link and the board worked normally again.  But a regular user reported this problem as well.

What can cause this?

My board is in http://www.juanadiaz.org/foro/index.php

[Jeff Lewis]

Make sure that you have your database settings correct.

[luisr]

Your answer was way too vague.  What settings?  Where?

The board is working.  This error message appears ocassionaly.

[David]

I believe he is reffering to your database username, password, server, name, and prefix.  You can find these either in your Admin panel or in the file Settings.php

[luisr]

A working forum can't possibly have those settings wrong.  This appears to be a random thing in either MySQL or PHP.

[scotbuff]

Or perhaps his database is not available occassionally.  If you boards work then suddenly don't that would be my guess as to what is going on.