を責めないで

don't blame

→ を
phrase Rare #39,618
don't blame A request or command meaning “don't blame [someone]” or “don't blame [someone] for something.” The person being blamed is marked with を; ください can be added to make the request more polite.
JA: 失敗しても私を責めないで。
EN: Don't blame me even if it fails.

遅れてを責めないで下さい

Please don't blame me if I'm late.

— ラスト、コーション (2007)

子供たちを責めないで

Don't blame the children!

ガイドさんを責めないで

Don't blame the guide.