Call setup theme function on after_setup_theme hook instead calling from constructor directly so that all theme setup functions work in sequence and correctly.
Remove $content_width variable assignment as its never used.
Correct the string Concat operator in add_pingback_link.
Remove non-existing Base class to which Infinite_Scroll was extending.
Fix the following issues
after_setup_theme
hook instead calling from constructor directly so that all theme setup functions work in sequence and correctly.$content_width
variable assignment as its never used.add_pingback_link
.Base
class to whichInfinite_Scroll
was extending.