Problem with document display and gl account update

Hi, I am facing a strange issue.

When I post a document using FB50 or FB60, document is being posted and document number

is generated successfully. However, when I go to document display I get a error messge

this document does not exist in company code for the fiscal year 2009.

When I check the GL Accounts, the GL accounts are also not being updated.

This started happening since last 2 days prior to that it was working fine. This system

is a test system and it has access to many people. I am guessing some setting might

have been changed.

I would appreciate if anyone can give suggestions where to look for to resolve this issue.