Re-Install with existing db

[Thomke]

Hi,

I needed to install a fresh new Joomla, because of the JCE Hack. I used my old db in order not to lose any articles and settings. Now I am facing the issue that I wanted to install Phoca Gallery, but I am getting the error message:

Warnung
JInstaller: :Install: SQL-Fehler Duplicate entry '1' for key 'j3_phocagallery_styles.PRIMARY'
Die Installation der Erweiterung wurde gestoppt.
(German installation)

How can I install Phoca Gallery by not losing anything I set up for Phoca Gallery?

Regards,
Thomas