I have recently made a few attempts to create my own URL shortener to help with my ads on Twitter. It has been a total hassle, but I almost have it working. My only problem is that I get this error after injecting my files, and attempting to install YOURLS. "Error establishing mySQL database connection. Correct user/password? Correct hostname? Database server running? in /home/a4423722/public_html/includes/class-mysql.php on line 298"