Cant login

Hi i just bought a premium minecraft (Via giftcode) from my friend. I was able to login untill today. Today i tried to sign in and it told me that i was able to play a demo (http://imgur.com/wkn3Dci). I toght if my minecraft account was broken. I tried to log in to my mojang account from minecraft.net. Meanwhile i was goint to change my skin but it gave me an error that i didn't expected. (http://imgur.com/1zHomug). And than i just wanted to test if my skin was there or not. I signe into minecraft by a cracked launcher. My skin was there. The thing that i feard wasnt there (http://imgur.com/pA2Tw66). The only thing that i wanted was to play minecraft with my friends :/