(such a/such) (document/certificate.)

[keannu]

[FONT=&#48148]I found I hadn't brought my passport..[/FONT]
[FONT=&#48148]But I needed some document/certificate to prove that my business trip was so urgent. As all the documents of my company was computerized and secured, I had no way to prepare (such a/such) (document/certificate.)

Are the underlined correct?

[/FONT]

 

[Tarheel]

I discovered I had forgotten my passport.

I needed a document to prove that my business trip was urgent.

As all the documents of my country are computerized and secure, I had no way to produce such a document.

 

[tedmc]

You probably mean you could not produce the documents which are stored online to prove that the business trip was urgent since they are secure and do not allow a hard copy to be printed.
I suppose you could capture screenshots of the documents and show them to the authority.