If you no longer require the simpleERB integrated Facebook widget on your restaurant's Facebook page, please take the following steps.
Login to your restaurant's Facebook account, the main account if you have multiple pages connected. Go to Meta Business Suite desktop or the Professional Dashboard and select the Business Apps tab.
Click 'Connected Apps' at the top or select the Mozrest Business App. Proceed to click Manage to be taken to the App page. Once on the Mozrest App page, select the three dots icon and then the 'Uninstall' button to action this. After completion, the 'Reserve' integrated button will be removed from the Facebook page.