SQL error??

Does anyone know what this error is or how to fix it?

• MySQL Error: SQLSTATE[42000] [1044] Access denied for user 'dragonflydust'@'%' to database 'members' at /home/content/15/10924415/html/amember/library/Am/Setup.php line 110(1044) in query: new PDO​

I looked at line 110 of the Setup.php and it says this. But I have no idea what it means or how to fix it, or if it even needs fixed.
$this->db = new DbSimple_Mypdo($config);

I can't get through the install process with it. I've never had trouble installing
amember before. I havent used amember for a few years. Now I've just spent $179.00 for something I can not use...

Thank you for your help
~ Julie

First check must be to make sure you have the PDO module installed on your server.

Thank you so much for you help. I appreciate it so much.
I am waiting to hear back from my host (www.godaddy.com) to see if I have a PDO module or not. I'm guessing not, since I've never had any trouble installing amember before now. And this is my 1st time installing it with godaddy as my host...