Change contact details

You don’t have to reinstall WP to modify your contact info!

It looks like the contact info is in a widget, so check Appearances->Widgets on the dashboard and look for a text widget in something probably named “footer”.

open that sidebar and edit the widget’s contents

I’m talking about the right side of that screen. Is there a widget area related to the footer?

If not, then it’s something specific to your theme.

Unfortunately, you use a commercial theme.

As you use a commercial theme/plugin and need support, please use their official support channel. We feel they are best equipped to support their products.

http://themeforest.net/item/benevolence-church-nonprofit-association/7860360

Commercial products are not supported in these forums. You are their customer; I am sure they will have no problem supporting you there.