YOU SAID:
An error occurred when duplicating the category
INTO JAPANESE
カテゴリの複製中にエラーが発生しました
BACK INTO ENGLISH
An error occurred while duplicating a category
INTO JAPANESE
カテゴリの複製中にエラーが発生しました
BACK INTO ENGLISH
An error occurred while duplicating a category
That didn't even make that much sense in English.