Everything was ok since i change my store settings for Country to Greece and zone Greece then my greek product descriptions turn into that:

��οκ����Ρ �ο δικ� �α� ηλΡκ��ονικ� κα�ά��ημα και α�ξ���Ρ �ι� ��λ��Ρι� �α�. �α�α������Ρ �α ��ο��ν�α � �ι� ��η�Ρ�ίΡ� �α�, �λη��θΡί�Ρ άμΡ�α

Before was everything ok. I dont understand. anyone can help? Thanks