Installing WordPress in another Install?

It was a cacheing plug-in (W3TotalCache) installed on the secondary site which prevented it from updating to the new url settings and displaying correctly. I had to completely delete the plug-in and all related files to enable the site again.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)