Problem in entering stock as well as closing posting period for MMRs

Dear All,

Whenever I do goods receipt (tcode: MB1C, movement type: 561) and enter, it gives the error "Posting only possible in 2007/05 and 2007/04 in CoCd XXXX. I know I need to close posting periods for MMRs. But the while doing that using MMPV for 2007/06 and CoCd XXXX, it comes to a screen stating following:

<b>Client YYY

Period entered (month/year) :06 2007

Incorrect period in control rec of CoCd XXXX; no conversion The current period of record (month/year) is 05 2007</b>

Alternatively, I try to close period thru OMSY and change period on "Pe" column, a window pops up saying "The CoCd XXXX no longer be initialised"

Can anyone help on this? I'm stuck and can't go further. Reward points assured.