Default Please help :)

First I want to apologize for my bad English . So , i have tried to install LG G-Flex ROM - V3.50 . I have downloaded the rom - v3.50 , gapps and MyHub . When I try to choose an language the pohne crashes and i got this message - LGSetupWizard crashed . What i can do now ? Im total noob and i really dont know what to do . I haven't created backup . I'll be glad if someone answered me