Well, maybe you could've accidentally expanded the size of one of the STGX.pac files, that could make Brawl, and/or BrawlBox crash. If That's the case, you might have to replace the STG.pac files, or download BrawlBox 0.67 Which can be found here ► http://forums.kc-mm.com/Gallery/BrawlView.php?Number=27797 , And The NetFrameWork v4 found here ► http://www.microsoft.com/en-us/download/details.aspx?id=17718 . Credit to BlackJax96 for the links.