Help Pokemon Uranium error help needed!

[MonkeyLord83]

Do you live in a cave or just don't know how to use a forum? Not trying to be rude, just genuinely curious since others have done the same thing you did...
Anyway, it's NOT a bug. The original Uranium team left development after a C&D order from Nintendo's lawyers. The game was then picked up by new developers who was originally in the fan community. You can find more details in these threads:
Official announcement of shutting down
Reasons behind it
Community response

So basically, if you downloaded an old version of the game, you simply CANNOT patch it without FIRST doing some things. What to do can be found in these threads:
@CodySP old guide
@ReeNormies new guide

All of these resources are readily available and all it takes is a quick search or quick read around the forum since most of these threads are either stickied, popular, or has inviting titles. So I really don't get why you'd ask first before even looking.