Error While Installing Srbac

I got some problem in installation of srbc this is the message after installation:

[size="4"][font="Arial Black"]Install Srbac[/font][/size]

Error while installing srbac.

Please check your database and try again

Extension i use: srbca 1.3beta

Also i’ve attach a screen shot of it, also my whole layout can’t display, i don’t see any frame. Before it works perfect this is after i configure my

main.php

Any help is much appreciated.