It looks like the problem is resolved when I changed these column titles:
v_categories_name_1
v_category_path_1
v_categories_description_1
v_metatags_title_1
v_metatags_keywords_1
v_metatags_description_1

to

v_categories_name_en
v_category_path_en
v_categories_description_en
v_metatags_title_en
v_metatags_keywords_en
v_metatags_description_en