Root Android.process.media error at market

[NhOki]

Hi there, i have the optimos 2x with a cyanogenmod 7 (2.3.7) and i'm having a problem, it allways work nice till today, today i went to market to update one app and when downloading this error came up, i try reeboting the device but the same hapens, when the error apears if i don't do nothing the download continues but when instaling gives me another error. any one can help me? ty