About reinstall plugin

hi, i’ve a question… in the plugin “ultimate branding” i got a whitescreen (in whole wordpress) after clicking the option: remove permalinks from menu..
so i reinstalled the plugin…. but after i activated it again, i still receive a whitescreen…. my question is… will there be some selected settings of the plugins saved in my database? i prefer to reinstall with all standard settings…

Are there any tables in my DB i have to delete/adjust to make the plugin working again (it was working great in my first install)

thank you in advance.

Regards,
Werni