There are a few mistakes in the romaji lyrics for -ERROR.

"dono kurai ijナ�?" before both the 1st/2nd choruses — should be "dono kurai ijou?"
"yume no yナ� ni saigo no" in both the 1st/last choruses — should be "yume no you ni saigo no"
"tナ絞 hi no koto" in the verse after the 1st chorus — should be "tooi hi no koto"

https://www.animelyrics.com/doujin/vocaloid/error.htm