Hey there, newcomers. Seems you're a bit late to the party, but here's a thread (still relevant) to check out (maybe just a few pages, b/c that mess is long)...
You shouldn't have to beat it again, but have you already tried those steps? Perhaps clearing the cache (also mentioned in that thread) would also help...
Hello there, welcome to the forum. It seems like you've got the same problem as another player (link), albeit in a different level. But if you go there & follow what it says, you should be all set. You're welcome, enjoy...