Tenshi no Inai 12-gatsu help

[Novel21]

 have download Tenshi no Inai 12-gatsu from ▊▊▊▊▊ and install game, download english patch and copy files from patch folder inside tenina_patch to installation directory for the game.

But when I shall launch game, I get this error message``dll with japansk words``

What does it mean?

I have changed system locale to Japansk. 

Please help me. 

 

P.S. I dont` know how to insert image from URL

 

[LostPomegranate]

Did you try leaving the DVD in while launching? The only error code I got was when I removed it.