Im Using Samsung galaxy ace S5830i.. nd Recently flashed Custom Rom @ Jelly Blast V 3.0.3.. but after Few days.. My phone got struck at boot Screen. after that my phone shows

E: failed to mount data <invalid argument>
E: copy_log_files_to_data : : can't mount /data

And even I can't able to Mount my data by using CW Recovery tool. I can able to use Odin. Its seems like my data partition is Corrupted..

plz help me bro.. how to fix this Data partition prob.