Error message
Warning: Undefined array key "" in vgi_bootstrap_sass_preprocess_views_view_summary_unformatted() (line 156 of themes/custom/vgi_bootstrap_sass/vgi_bootstrap_sass.theme).
Warning: Undefined array key "DO" in vgi_bootstrap_sass_preprocess_views_view_summary_unformatted() (line 156 of themes/custom/vgi_bootstrap_sass/vgi_bootstrap_sass.theme).