Well, I think that means that whoever made this didn't want anybody to open it, or at least they didn't want anybody to open it easily.
Ég á viđ, ađ sá sem bjķ ūetta til vildi ekki neinn opnađi ūađ, eđa ađ minnsta kosti vildu ūeir ekki ađ neinn opnađi ūađ auđveldlega.