Closing period in OMSY has maintained as 12/2007

Hi,

Could any one can help me in my posting period problem? I foumd in OMSY my current period is mentioning 12/2007. And when I try to post GR or Invoice system is not allowing me to post the document and requesting me to change the posting period.

I tried opening MMPV but I could not post it fo the current period. same with MMPI and getting a message to check note 487381.

Kind Regards,

Sankar.K