i am running vv3 on xp and I just bought the second level of nature and i lost the alchemy lab (was in ruins again) and I accidently moved one of the villagers carrying a pot and they dropped it and it disappeared so i cant build the alchemy lab

Does this happen when second level of nature is bought (orchard disappear and the alchemy lab has to be rebuilt) and is there any way I can get the pot back or do i have to restart the game.

I have checked the map and the special herb isnt there either, Need help and wanted to report this just in case.

Edit: I have also lost all my puzzle progress it all went back to nothing, no bee hive complete or orchard, handy if you have no food hehe but not good losing all that progress.