Help About Key

[Straxedix]

Hello evrybody this is my first post on this forum xD
I creating my first custom story
I created about 3 maps and i wanna make it not so big not so small about
4-5 doors and i make it
i set the first doors are opened by the key and it worked
But what is problem ?
When i set script and lang file it is all set good (i think)
I pick up key it says what i want description is also what i want
but when i come to door what need to unlock i double click in invetory key on doors and Nothing no text This item can not use this way
Door's are still closed
I try again then white text comes "This item can not use this way"
What is problem il set here my script and lang if need just to solve it

Sorry for my bad English