Hello,
Just filed a bug at https://github.com/Konloch/bytecode-viewer/issues/141
Looks like there is a way to break Bytecode Viewer with some specific APKs. When I try to open this APK: https://mega.nz/#!khkETDoL!1TU35Uf5oSxBI...DGbR3MAGCQ I get ArrayIndexOutOfBoundsException and NullPointerException. Please have a look.

Thank you.