Is this module compatible with J4?
These are the warnings I get in frontend:
Warning: Undefined array key "fb_auto_url" in .\modules\mod_social_gk5\data_source\facebook.php on line 23
Warning: Undefined array key "fb_likebox_colorscheme" in .\modules\mod_social_gk5\tmpl\fbLikebox.php on line 37
Warning: Undefined array key "fb_likebox_header" in .\modules\mod_social_gk5\tmpl\fbLikebox.php on line 40
Warning: Undefined array key "fb_likebox_show_border" in .\modules\mod_social_gk5\tmpl\fbLikebox.php on line 41