I was experiencing problems with my package files, mainly that they weren't working, so I uninstalled, then reinstalled my game, and put the package files back in, but now all the rabbit holes turned into blue community lots that I can't enter. I've taken out all the mods that I downloaded, but unfortunately it hasn't fixed the problem. I have the clothes/hairstyles/shoes etc package files as well as sims 3 files but no actual mods. What could have happened? What can I do to fix it?

these rabbitholes are standard ones (shells) or rug or door made? And which ones?

They are the standard ones, and all of them, its turned all rabbit holes and actual community lots into just community lots. I click on them and it says 'visit such and such lot' but when I click on the actual building, there isn't any options

ups, it seems something overwrites game resources. And some content is missing.
Have you tried a clean run? (moving EA folders somewhere else and forcing game to create new)

Yeah it turns out it was bad content, cos I did a run with no mods and it worked so I just scrapped the downloads ;s Back to the ol' downloading board.
Not too sure what one could have caused it.

50/50 method* tells you the truth

(1st. half of folder files stays, 2nd half moved elsewhere - worked? add 1/2 from moved, repeat, not worked? remove half of 1st set, and again, again... 'till you find this bad bad bad file)