Error Message C+805 and C+712 Material Ledger CKMLCP

hi All;

I am facing a problem in Material Ledger, I activated ML for period 01 2014 and now my current period is 02 2014, when i run single level price det for period 01 2014 in CKMLCP it give me error C+805 which explains to close the previous period which is 12 2013 and for this period the status of the material is value entered I dont how as i said i activated my ML in period 1 2014, so problem is i cant do ML closing for 12 2013 coz of message C+712 which explains period 12 2013 is not ur current period. I am stuck in between and i cud not get any help from SDN, I would be grateful if you can help me out,I working on ECC 6.

Thanks in advance

Regards

Rashid