Coming from experience I suggest you clean out any community objects or pictures you have right away. I had this come up on me before and I just kept ignoring it until it went away (I planned on clearing out the objects just never got around to it). But then since I kept ignoring it, the game stopped saving my profile. So this was fine because it kept saving within the game data so I didn't lose anything and thought it didn't really matter. So I keep playing and got 100% on everything (acing the levels was the most tedious and annoying). The next day I go to load my game and it says save game data corrupted and I couldn't play. I ended up having to start over from scratch!! Luckily I had saved a copy of the profile data on my external drive and copied it over but was still only about 60% done! I had to do everything over again! So needless to say I completed everything again and made sure that my profile always saved then backed that up on each of my external drives. But trust me make sure your profile saves and back it up because you'll just end up getting as frustrated as me if this happens and it makes you feel like not playing the game anymore because of all your lost effort.
