Import the lar file for the guest community.

Enable the below property in portal-ext.properties to import the lar file for the guest community.

#
# Specify a LAR file that can be used to create the guest public layouts.
# If this property is set, the previous layout properties will be ignored.
#
default.guest.public.layouts.lar=${liferay.home}/deploy/default_guest_public.lar