Corrupted game files and infinite loading/save

I was playing throuhg the Last Straw quest wand when i reached an auto save point the saving icon remained there for more than half an hour, then when I reached a place that had a cut-scene the game began to freeze which lasted for several mminutes and the savina small anouncement saying  "File Data is Corrupted" then I tried to load nother file and it said the same thing but with another detail, it also said that all my DLC's were not installed either. I tried to solve the issue and by deleting and re-installing the game even restored the PS3 data to no avail... is there any solution to this yet?